The Berean Table

Field	Detail
Pericope	1 Corinthians 5:1–13
Theme	The holiness of Christ’s church and the necessity of discipline — a flagrant case of sexual immorality tolerated with arrogance, the command to deliver the offender to Satan for the destruction of the flesh that his spirit may be saved, the warning that a little leaven leavens the whole lump, Christ our Passover lamb sacrificed for us, the call to keep the feast with the unleavened bread of sincerity and truth, and the duty to judge those inside the church and purge the evil person from among them

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Opening Prayer

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Closing Prayer

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Timeline Context

First Corinthians was written by the apostle Paul around A.D. 53–55, during his lengthy ministry in Ephesus on the third missionary journey (1 Corinthians 16:8; Acts 19). Paul had founded the church at Corinth a few years earlier, laboring there for eighteen months (Acts 18:1–11) before moving on. The letter responds both to oral reports brought to him (“it has been reported to me by Chloe’s people,” 1 Corinthians 1:11) and to a letter the Corinthians had sent with questions (1 Corinthians 7:1). Chapter 5 belongs to the first category: Paul has received word of a scandal in the congregation and writes to confront it directly.

Corinth was a wealthy, cosmopolitan port city, the capital of the Roman province of Achaia, situated on the narrow isthmus joining the Peloponnese to mainland Greece. Refounded as a Roman colony in 44 B.C., it teemed with commerce, transient sailors, and the moral laxity proverbially associated with port cities. The verb “to Corinthianize” had become slang for sexual immorality. The temple of Aphrodite loomed over the city, and pagan religion, idol feasts, and prostitution saturated daily life. Into this morally permissive environment the gospel had planted a church, and the surrounding culture’s loose sexual ethics continued to exert pressure on the believers. Chapter 5 reveals how far that pressure had penetrated: a member was living with his stepmother, and the church not only tolerated it but remained arrogant.

This chapter falls within the letter’s broader treatment of the divisions and disorders plaguing Corinth (chapters 1–6), and specifically opens Paul’s confrontation of moral scandal (chapters 5–6) before he turns to answer their questions (chapters 7 onward). Redemptive-historically, the chapter stands in the era of the new covenant church’s formation among the nations, when the apostolic foundation was being laid for how the holy people of God would live distinctly amid a pagan world. Drawing on the Passover and the purging of leaven, Paul roots the church’s call to holiness in the finished work of Christ, the true Passover Lamb, and in the Old Testament pattern of a redeemed people set apart from corruption. The chapter is a charter for church discipline and for the purity that befits those bought by the blood of the Lamb.

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Historical-Grammatical Study

Genre. First Corinthians is a New Testament epistle, an occasional apostolic letter written to address concrete problems in a specific congregation. Chapter 5 is hortatory and disciplinary, combining stern rebuke, an authoritative apostolic verdict, theological grounding in the Passover, and practical instruction about association with the unrepentant. The chapter moves from the report of scandal and the church’s arrogance (vv. 1–2), to Paul’s pronounced judgment and the command to deliver the man to Satan (vv. 3–5), to the leaven metaphor grounded in Christ our Passover (vv. 6–8), to clarification about not associating with an immoral “brother” (vv. 9–13).

Key grammatical and syntactical features.

• “Sexual immorality” (porneia, v. 1). A broad term for unlawful sexual activity; here qualified as “a kind that is not tolerated even among pagans” (oude en tois ethnesin), an offense against the incest prohibitions of Leviticus 18:8 and Roman law alike.
• “His father’s wife” (gynaika tou patros, v. 1). Not “mother” but stepmother; the phrasing echoes the Septuagint of Leviticus 18:8, framing the sin in covenantal-legal terms.
• “You are arrogant” (pephysiōmenoi este, v. 2). The perfect passive of physioō, “to puff up” or inflate — a recurring charge against the Corinthians (1 Corinthians 4:6, 18–19; 8:1). Their inflated self-estimation persisted even amid scandal.
• “Removed from among you” (arthē ek mesou hymōn, v. 2). The verb airō (“to take away, remove”) anticipates excommunication; the phrasing recalls the Deuteronomic refrain “purge the evil from your midst.”
• “Deliver this man to Satan” (paradounai tō Satana, v. 5). A formula of solemn handing-over (cf. 1 Timothy 1:20); to put the unrepentant outside the protective fellowship of the church into the realm Satan dominates (cf. Ephesians 2:2; Colossians 1:13).
• “For the destruction of the flesh, so that his spirit may be saved” (eis olethron tēs sarkos, hina to pneuma sōthē, v. 5). The aim is remedial and saving, not vindictive; sarx (“flesh”) likely denotes the sinful nature or fleshly conduct to be mortified, pneuma the person saved in the eschatological “day of the Lord.”
• “A little leaven leavens the whole lump” (mikra zymē holon to phyrama zymoi, v. 6). A proverbial saying (also Galatians 5:9); leaven (zymē) regularly symbolizes pervasive corrupting influence.
• “Christ, our Passover lamb, has been sacrificed” (to pascha hēmōn etythē Christos, v. 7). The Passover (pascha) of Exodus 12 is fulfilled in Christ; the aorist etythē (“was sacrificed”) points to the accomplished cross-work.
• “Sincerity and truth” (eilikrineias kai alētheias, v. 8). Eilikrineia connotes purity tested by sunlight, unmixed and genuine; the “unleavened bread” of the Christian’s festival.

First-century and Old Testament background. The Passover and the seven-day Feast of Unleavened Bread (Exodus 12; Leviticus 23:5–8; Deuteronomy 16) form the backdrop of verses 6–8. Before Passover, Israelite households scrupulously removed every trace of leaven from their homes, a vivid enacted parable of separation from corruption. Paul assumes his readers’ familiarity with this practice and applies it spiritually to the church. The incest of verse 1 violated Leviticus 18:8 and 20:11, and Roman law (the lex Iulia) also forbade such unions, so the offense scandalized Jew and Gentile alike. The repeated Deuteronomic formula, “So you shall purge the evil from your midst” (Deuteronomy 17:7, 12; 19:19; 21:21; 22:21–24; 24:7), is quoted in verse 13, drawing the new covenant church into continuity with the holiness required of Israel.

Covenantal themes. The chapter binds together the holiness of God’s covenant people, the typology of Passover fulfilled in Christ, and the discipline that guards the purity of the church. The church is the new covenant community, the temple of the Holy Spirit (1 Corinthians 3:16–17), and as such must be kept free from the leaven of unrepented sin. Paul’s reasoning is thoroughly redemptive: because Christ the Passover Lamb has been sacrificed, the church is already “unleavened” in principle and must become in practice what she is in Christ.

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Expanded Outline

Section 1 — The Scandal and the Church’s Arrogance (1 Corinthians 5:1–2)

Key Insight

Paul opens with a report he can scarcely believe: “It is actually reported that there is sexual immorality among you, and of a kind that is not tolerated even among pagans, for a man has his father’s wife” (v. 1). The word “actually” (holōs) registers his shock — such a thing is commonly or actually heard of among them. The sin is porneia, sexual immorality, here a case of incest: a man living with “his father’s wife,” that is, his stepmother. The offense was so grave that even the morally lax pagan world recoiled from it, for both the law of Moses (Leviticus 18:8; 20:11) and Roman law forbade such a union. That a member of Christ’s church was engaged in conduct that scandalized even unbelievers exposed how deeply the surrounding culture’s corruption had penetrated the congregation.

Yet Paul’s sharpest rebuke falls not on the offender but on the church: “And you are arrogant! Ought you not rather to mourn? Let him who has done this be removed from among you” (v. 2). The word “arrogant” (pephysiōmenoi) means “puffed up, inflated” — a charge Paul repeatedly levels at the Corinthians (1 Corinthians 4:6, 18; 8:1). Astonishingly, they were proud while harboring scandal, when they ought to have been in mourning. Some at Corinth may have boasted in their tolerance as a mark of spiritual liberty or sophistication; others were simply indifferent. Either way, their pride was monstrous. Calvin observes that “Paul does not so much blame them for the crime of one individual, as for their carelessness in winking at it… they gloried, while they ought to have mourned.” The fitting response to flagrant sin in the body is not boasting but grief.

Paul’s prescribed remedy is plain: “Let him who has done this be removed from among you.” The verb “removed” (arthē) anticipates the formal act of excommunication, echoing the Deuteronomic command to “purge the evil” from the midst of God’s people (Deuteronomy 17:7; quoted in v. 13). The health of the whole body required the removal of the unrepentant member. This is not cruelty but covenant faithfulness: the church, as the holy people of God and the temple of the Spirit (1 Corinthians 3:16–17), cannot harbor open, defiant sin without dishonoring her Lord. The mourning Paul calls for is the godly grief that takes sin seriously, both the sinner’s sin and the church’s complicity, and that longs for repentance and restoration. Redemptive-historically, this echoes the holiness God required of Israel and points forward to the spotless bride Christ will present to Himself (Ephesians 5:25–27). A church that loves Christ will not be at ease with what grieves Him.

Application

This passage confronts the modern temptation to mistake tolerance for love and indifference for grace. The Corinthians’ pride amid scandal warns us against a “sophistication” that congratulates itself for refusing to judge while sin festers in the body. The right response to flagrant, unrepented sin in the church is not celebration of our open-mindedness but mourning that takes sin as seriously as God does. Examine your own heart: do you grieve over sin, your own and others’, or have you grown comfortable with what would once have shocked you? The culture’s pressure to normalize what God forbids is relentless, and the church is not immune. This passage also dignifies the loving necessity of removing an unrepentant member, not to be rid of a person, but to honor Christ and seek the sinner’s recovery. Beware two misapplications: a harsh eagerness to expel that lacks the mourning Paul commands, and a sentimental tolerance that refuses to act at all. The mark of a healthy church is neither cruelty nor complacency, but a holy sorrow that loves the sinner enough to confront the sin (Galatians 6:1; James 5:19–20).

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Section 2 — The Apostolic Verdict: Deliver Him to Satan (1 Corinthians 5:3–5)

Key Insight

Paul now pronounces his apostolic judgment with solemn authority: “For though absent in body, I am present in spirit; and as if present, I have already pronounced judgment on the one who did such a thing” (v. 3). Though physically distant in Ephesus, Paul exercises his apostolic office over the Corinthian church, having “already pronounced judgment” (kekrika, perfect tense — a settled verdict) on the offender. The apostle does not leave the matter to vague sentiment but renders a definite, authoritative judgment. This is not personal vindictiveness but the exercise of the spiritual authority Christ gave His church to bind and loose (Matthew 16:19; 18:18; John 20:23).

The act is to be carried out by the gathered congregation: “When you are assembled in the name of the Lord Jesus and my spirit is present, with the power of our Lord Jesus” (v. 4). Church discipline is a corporate, solemn act of the assembled church, undertaken in Christ’s name and by His power, not a private grievance. The repeated invocation of “the Lord Jesus” underscores that the church acts not on its own authority but as Christ’s body, wielding His delegated power. The presence Paul claims “in spirit” likely means his apostolic concurrence and authority accompany the act, even in his bodily absence.

The verdict itself is striking: “you are to deliver this man to Satan for the destruction of the flesh, so that his spirit may be saved in the day of the Lord” (v. 5). To “deliver to Satan” (paradounai tō Satana) is to put the unrepentant offender outside the protective fellowship of the church and into the realm Satan dominates (cf. 1 Timothy 1:20; Ephesians 2:2). Excommunication removes the sinner from the means of grace and the shelter of the body, exposing him to the consequences of his sin. Yet the aim is unmistakably redemptive: “for the destruction of the flesh, so that his spirit may be saved in the day of the Lord.” The “flesh” (sarx) to be destroyed is best understood as the sinful nature or fleshly conduct to be mortified, and the ultimate goal is that “his spirit may be saved” at Christ’s return. Calvin writes that this discipline is “not for destruction, but for salvation,” a severe mercy meant to bring the sinner to repentance. The most painful exercise of discipline is aimed at the eternal salvation of the soul, not its ruin. The “day of the Lord” sets the whole act within an eschatological frame: present discipline serves final salvation. This is church discipline at its most serious, and at its most loving.

Application

This passage teaches that church discipline, rightly understood, is an act of love grounded in Christ’s authority and aimed at the sinner’s salvation. Discipline is never about revenge or self-righteousness; its goal is repentance, restoration, and the eternal good of the soul. When the church must act against an unrepentant member, it does so soberly, corporately, in Christ’s name, and with grief, not glee. Submit to the lawful discipline of the church as Christ’s appointed means of grace, and receive correction humbly when it comes to you. This passage also rebukes a sentimentality that, in the name of love, refuses ever to confront sin; the most loving thing may be the hardest, removing a sinner from false comfort so that, feeling the weight of his sin, he may repent and be saved. Beware two misapplications: a vindictive harshness that wields discipline as a weapon, forgetting its saving aim, and a cowardly tolerance that abandons a brother to his sin under the guise of kindness. True love seeks the sinner’s salvation, even at the cost of painful confrontation (Hebrews 12:6, 11; 2 Corinthians 2:6–8).

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Section 3 — A Little Leaven and Christ Our Passover (1 Corinthians 5:6–8)

Key Insight

Paul returns to the church’s pride and exposes its folly with a proverb: “Your boasting is not good. Do you not know that a little leaven leavens the whole lump?” (v. 6). The phrase “Do you not know” (a refrain in this letter) implies they should have known better. Tolerated sin does not stay contained; like leaven, it permeates and corrupts the whole body (cf. Galatians 5:9). The Corinthians imagined that one man’s sin was a private matter that left the congregation untouched. Paul corrects them: a little leaven, left in the lump, will work its way through the entire mass. Sin tolerated breeds further sin, lowers the church’s standard, and corrupts its witness.

The remedy follows: “Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed” (v. 7). Here Paul reaches back to the Passover and the Feast of Unleavened Bread (Exodus 12; Deuteronomy 16). Before Passover, every Israelite household removed all leaven from the home, a vivid enacted parable of separation from corruption. The church is to “cleanse out the old leaven” of sin so as to become in practice what she already is in Christ — “a new lump,” truly “unleavened”. This is the characteristic Pauline logic of indicative and imperative: become what you are. Believers are already cleansed and set apart in Christ; therefore they must purge the leaven of sin. The ground of the whole exhortation is the climactic declaration: “For Christ, our Passover lamb, has been sacrificed.” Just as the Passover lamb of Exodus 12 was slain so that Israel might be spared and redeemed from Egypt, Christ is the true Passover Lamb, sacrificed once for all, whose blood redeems and consecrates His people. Calvin observes that “as the Jews were not at liberty to eat the Passover until the leaven was wholly removed, so we must purge out the old leaven that we may keep the feast.” The cross is both the basis and the motive of the church’s purity.

Paul draws the conclusion: “Let us therefore celebrate the festival, not with the old leaven, the leaven of malice and evil, but with the unleavened bread of sincerity and truth” (v. 8). The whole Christian life is now a continual Feast of Unleavened Bread. The believer’s festival is celebrated by putting away the leaven of malice and evil and feeding on the unleavened bread of sincerity and truth. “Sincerity” (eilikrineia) suggests purity tested in the light of the sun, unmixed and genuine; “truth” (alētheia) is integrity and honesty before God. Redemptive-historically, the Exodus deliverance, the slain lamb, and the unleavened bread all find their fulfillment in Christ and His church. The shadow has given way to substance: Christ our Passover has been sacrificed, and His redeemed people keep perpetual festival in holiness. Because the Lamb has been slain, the church must live as a purged, unleavened, festal people.

Application

This passage warns against the dangerous illusion that sin can be contained and quarantined. Tolerated sin, whether in the church or in your own heart, never stays put; like leaven it spreads and corrupts the whole. Take sin seriously at its first appearing, and deal with it decisively, before it permeates. This passage also supplies the deepest motive for holiness: not mere duty or fear, but the finished work of Christ our Passover. Because the Lamb has been sacrificed for you, cleanse out the old leaven and become in practice what you already are in Christ — a new lump, unleavened, holy. Examine your life for the “leaven of malice and evil,” the bitterness, deceit, and corruption that lurk in hidden places, and put them away, feeding instead on “sincerity and truth.” The Christian life is a continual festival kept in holiness because of the cross. Beware two misapplications: a self-reliant moralism that tries to purge sin apart from the gospel, forgetting that holiness flows from Christ’s sacrifice; and a passive presumption that, since we are “unleavened” in Christ, no effort at purity is needed. Indicative and imperative belong together: become what you are (Colossians 3:1–10; 2 Corinthians 7:1).

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Section 4 — Not to Associate with an Immoral Brother (1 Corinthians 5:9–11)

Key Insight

Paul now clarifies an earlier instruction that had been misunderstood: “I wrote to you in my letter not to associate with sexually immoral people— not at all meaning the sexually immoral of this world, or the greedy and swindlers, or idolaters, since then you would need to go out of the world” (vv. 9–10). Paul had evidently written a previous letter (now lost) urging the Corinthians “not to associate” with the immoral. They had apparently misread him to mean they must avoid all immoral people everywhere. Paul corrects this: he never meant the immoral “of this world,” for to avoid all sinful unbelievers would require leaving the world altogether. The church is not called to withdraw from contact with sinners in the world; indeed, the gospel sends believers into the world to bear witness (cf. 1 Corinthians 9:19–23; John 17:15). Jesus Himself was the friend of sinners (Luke 7:34).

The real point concerns those within the church: “But now I am writing to you not to associate with anyone who bears the name of brother if he is guilty of sexual immorality or greed, or is an idolater, reviler, drunkard, or swindler—not even to eat with such a one” (v. 11). The discipline Paul commands applies to those who claim the name of “brother” yet live in unrepented, flagrant sin. The phrase “anyone who bears the name of brother” is crucial: the issue is professing Christians whose lives contradict their profession. Paul lists a representative catalog of grave, persistent sins — sexual immorality, greed, idolatry, reviling (verbal abuse), drunkenness, swindling — covering not only sexual sin but also sins of speech, appetite, and money. The unrepentant “brother” guilty of such things is to be excluded from the fellowship of the church, “not even to eat with such a one.”

This exclusion “even from eating” likely refers both to ordinary table fellowship and, especially, to the Lord’s Supper and the fellowship meals of the church. To withhold table fellowship is to signal that the unrepentant person’s profession is contradicted by his life, and to refuse the appearance of approving his sin. This is not personal cruelty but a sober, corporate withdrawal designed to awaken the sinner to the seriousness of his condition. Matthew Henry observes that “the rule is plain: those who profess religion, and yet live in open sin, are to be avoided,” for their continued fellowship “would harden them in sin and reflect dishonour on the church.” The discipline is restorative in intent: by feeling the loss of fellowship, the sinner may be brought to repentance (cf. 2 Thessalonians 3:14–15, “do not regard him as an enemy, but warn him as a brother”). Redemptive-historically, this guards the visible church as a distinct, holy community, while leaving the judgment of the world to God (v. 13). The church’s discipline is reserved for those who claim Christ’s name yet defy His holiness, and it aims always at their recovery.

Application

This passage corrects two opposite errors. On one side stands a separatist withdrawal that avoids all contact with unbelievers, contradicting the church’s mission to the world; on the other stands a careless tolerance that extends unqualified fellowship to professing believers living in open, unrepented sin. Engage the lost world freely as Christ’s witnesses, but exercise loving discipline toward those who claim the name of brother yet defy His holiness. Examine your relationships: do you befriend unbelievers for the sake of the gospel, or have you withdrawn into a Christian bubble? And do you wink at flagrant, unrepented sin among professing Christians for the sake of false peace? The catalog of sins reminds us that discipline is not reserved for sexual sin alone, but extends to greed, idolatry, abusive speech, drunkenness, and dishonesty. This passage also clarifies that withholding fellowship is a tool of restoration, not rejection; its goal is to awaken the sinner to repentance. Beware two misapplications: a harsh shunning that treats the disciplined brother as an enemy rather than warning him as a brother (2 Thessalonians 3:15), and a false love that maintains fellowship as though sin did not matter. Hold together the church’s mission to sinners outside and her holiness within (Mark 2:16–17; Galatians 6:1).

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Section 5 — Judging Those Inside and Purging the Evil (1 Corinthians 5:12–13)

Key Insight

Paul concludes with a sharp clarification of the church’s responsibility: “For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge?” (v. 12). The church’s task of judgment is directed inward, toward its own members, not outward, toward the unbelieving world. Paul disclaims any apostolic mandate to sit in judgment over those outside the church; the world’s sins, grievous as they are, are not the church’s disciplinary concern. But “those inside the church” — those who have professed Christ and joined His covenant community — are subject to the loving, corrective judgment of the body. This explains the entire chapter: the church had failed to judge the one sin it was responsible to address (the incestuous brother) while remaining proud and indifferent.

Paul then assigns the world to God: “God judges those outside” (v. 13a). The final judgment of the unbelieving world belongs to God alone, and the church may leave it confidently in His hands. This is not indifference to the world’s sin but a proper division of labor: God will judge the world in righteousness (Acts 17:31; Romans 2:16), while the church is charged to maintain the purity of its own fellowship. This frees the church from the impossible and presumptuous task of policing the morality of unbelievers, and focuses its discipline where Christ has placed it.

The chapter closes with a direct quotation from Deuteronomy: “Purge the evil person from among you” (v. 13b). This refrain appears repeatedly in Deuteronomy (17:7, 12; 19:19; 21:21; 22:21, 24; 24:7) as the command to remove the wicked from Israel, the holy covenant people. By quoting this Deuteronomic formula, Paul places the new covenant church in continuity with the holiness God required of Israel: the church, like Israel, is a holy people who must not harbor unrepented evil in its midst. The verb “purge” (exairō, “remove, drive out”) brings the chapter full circle to the command of verse 2 (“Let him… be removed from among you”). Calvin notes that “the church is the sanctuary of God, and must not be defiled by the toleration of open wickedness.” The quotation grounds church discipline not in mere pragmatism but in the abiding will of God for the holiness of His people. Redemptive-historically, the new Israel, the church, is summoned to the same separation from corruption that marked the old, now fulfilled and deepened in Christ our Passover. The holiness of God’s covenant people demands the purging of unrepented evil from the community.

Application

This passage corrects a common confusion about the proper object of the church’s judgment. The church is not called to police the morality of the unbelieving world, but to maintain the purity of its own fellowship; God Himself will judge those outside. Examine where your moral energy is directed: do you spend it condemning the sins of unbelievers while excusing or ignoring sin within the church and your own heart? The world’s sin is God’s to judge; the church’s holiness is ours to guard. This passage also grounds the church’s discipline in the unchanging will of God, the same God who commanded Israel to “purge the evil.” Take seriously the call to maintain a holy community, not by self-righteous judgmentalism, but by loving accountability that seeks the holiness of the whole body and the restoration of the fallen. Beware two misapplications: a hypocritical eagerness to judge the world while tolerating sin among ourselves (Romans 2:1–3), and a refusal to exercise any internal discipline at all, leaving the church to be leavened by unrepented evil. Leave the world to God’s judgment, and faithfully tend the holiness of Christ’s church (Matthew 7:1–5; 1 Peter 4:17).

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Cross References

Comparative Gospel Study

Not Applicable as Direct Comparison — 1 Corinthians is a New Testament epistle, not Gospel narrative. There is no parallel account to harmonize as one would harmonize the Synoptic Gospels. However, 1 Corinthians 5 develops key Gospel themes that find their roots and fulfillment in the ministry and teaching of Jesus:

First, the holiness Christ requires of His church. Jesus taught that His followers are “the salt of the earth” and “the light of the world,” warning that salt which loses its savor is good for nothing (Matthew 5:13–16). Paul’s call to purge the leaven of corruption echoes this demand for a distinct, holy people whose witness depends on their purity.

Second, the procedure of church discipline. Jesus Himself laid down the pattern in Matthew 18:15–20, culminating in treating the unrepentant “as a Gentile and a tax collector” and promising that what the church binds on earth is bound in heaven. Paul’s command to “deliver this man to Satan” and to act “with the power of our Lord Jesus” applies the keys of the kingdom Christ entrusted to His church (Matthew 16:19; John 20:23).

Third, Christ as the Passover Lamb. The Gospels present Jesus’ death in deliberate Passover terms: the Last Supper was a Passover meal (Mark 14:12–16), and John identifies Jesus as “the Lamb of God, who takes away the sin of the world” (John 1:29), crucified as the Passover lambs were slain (John 19:14, 36, fulfilling “not one of his bones will be broken”). Paul’s declaration “Christ, our Passover lamb, has been sacrificed” (v. 7) draws directly on this Gospel reality.

Fourth, discipline aimed at restoration. Jesus came “to seek and to save the lost” (Luke 19:10) and taught the joy of recovering one wandering sheep (Matthew 18:12–14, immediately before the discipline passage). Paul’s severe command aims “that his spirit may be saved” (v. 5), reflecting the Shepherd’s heart for the recovery of the straying.

Old Testament Connections

Pentateuch. The chapter is saturated with Pentateuchal material. The incest prohibition of verse 1 quotes Leviticus 18:8 and 20:11 (“the nakedness of your father’s wife”). The Passover and Feast of Unleavened Bread (vv. 6–8) derive from Exodus 12 and Leviticus 23:5–8, where the slain lamb redeems Israel and all leaven is purged before the feast. The closing command “Purge the evil person from among you” (v. 13) quotes the recurring Deuteronomic refrain (Deuteronomy 17:7, 12; 19:19; 21:21; 22:21, 24; 24:7).

Historical Books. The principle that tolerated sin defiles the whole community is illustrated in the sin of Achan (Joshua 7), whose hidden disobedience brought defeat on all Israel until the evil was purged, a vivid historical demonstration that “a little leaven leavens the whole lump.”

Wisdom Literature. The proverbial wisdom that small corruptions spread is reflected in Ecclesiastes 9:18, “one sinner destroys much good,” and Ecclesiastes 10:1, “dead flies make the perfumer’s ointment give off a stench,” paralleling the leaven principle. The call to “sincerity and truth” (v. 8) echoes the Psalmist’s longing for “truth in the inward being” (Psalm 51:6) and the blessing on the one “in whose spirit there is no deceit” (Psalm 32:2).

Major Prophets. The prophets repeatedly summoned God’s people to purge corruption and pursue genuine holiness rather than empty ritual (Isaiah 1:16–17; Ezekiel 36:25–27, the promise of cleansing). The call for unleavened sincerity over hypocrisy resonates with the prophetic demand for inward truth.

Minor Prophets. Malachi’s rebuke of a corrupt and complacent worship (Malachi 1:6–14) and Zephaniah’s call to seek the Lord in humility (Zephaniah 2:3) reflect the same concern that the covenant community be purified rather than presumptuous.

New Testament Fulfillment

Gospels and Acts. Jesus established the pattern of church discipline (Matthew 18:15–20) and the keys of the kingdom (Matthew 16:19), and identified Himself as the Passover Lamb (the Last Supper, Mark 14; John 1:29; 19:36). Acts records the church’s concern for purity, as in the discipline of Ananias and Sapphira (Acts 5:1–11).

Paul’s Epistles. Paul repeats the leaven proverb in Galatians 5:9 in the context of false teaching. He commands the Thessalonians to withdraw from the disorderly “that he may be ashamed,” yet to warn him “as a brother” (2 Thessalonians 3:14–15). He instructs Titus to reject a divisive person after warnings (Titus 3:10) and hands Hymenaeus and Alexander over to Satan (1 Timothy 1:20). The restoration of the (likely same) repentant offender appears in 2 Corinthians 2:5–11, showing discipline’s saving fruit.

General Epistles and Revelation. The General Epistles affirm the church’s call to holiness as God’s holy people (1 Peter 1:15–16; 2:9). Revelation rebukes churches that tolerate immorality and false teaching (the church at Pergamum and Thyatira, Revelation 2:14–16, 20–23) and exalts Christ as the slain Lamb whose blood redeems (Revelation 5:9, 12).

Redemptive-Historical Context

First Corinthians 5 stands at a crucial juncture in the unfolding drama of redemption, drawing together the great movements of Creation, Fall, Redemption, and Consummation. At Creation, God established marriage and sexuality within His good order (Genesis 1:27–28; 2:24), an order the incest of verse 1 grievously violates. The Fall unleashed the corruption that spreads like leaven through humanity and into the very church; the Corinthian scandal is one expression of the pervasive defilement sin introduced into the world. The chapter’s whole concern with purging corruption presupposes the deep reality of human sinfulness and the contagion of evil.

The center of the passage, and of all redemptive history, is Redemption accomplished in Christ our Passover, “sacrificed for us” (v. 7). The Exodus, in which God redeemed Israel from Egypt by the blood of the Passover lamb, was the great Old Testament type of salvation. That deliverance pointed forward to the true and final redemption: the Lamb of God, slain at Passover, whose blood delivers His people not from Pharaoh but from sin and death (John 1:29; 1 Peter 1:18–19). The cross is the fulfillment of the Passover, the once-for-all sacrifice that redeems and consecrates a holy people. Just as Israel, redeemed from Egypt, was to live as a separated, holy nation, so the church, redeemed by Christ, is to live as an unleavened people, purged of corruption.

The passage pulses with the already / not yet tension characteristic of New Testament eschatology. Believers are “already” unleavened in Christ — cleansed, set apart, made a new lump by His finished work (v. 7). Yet they are summoned to “cleanse out the old leaven,” to become in practice what they already are, a process not yet complete. The discipline of the church looks toward “the day of the Lord” (v. 5), the final consummation when the sinner’s spirit may be saved and the church presented spotless. The church lives between the accomplished redemption of the cross and the consummated salvation of Christ’s return, pursuing holiness as a people already redeemed but not yet glorified.

The chapter’s New Covenant dimension is profound. By quoting the Deuteronomic “purge the evil person from among you” (v. 13), Paul binds the new covenant church to the holiness God required of old covenant Israel, now deepened and fulfilled in Christ. The church is the true Israel, the holy people of God (1 Peter 2:9; Galatians 6:16), the temple of the Spirit (1 Corinthians 3:16–17), called to reflect the holiness of her redeeming Lord. The Passover, the unleavened bread, the purging of evil, the holy assembly, all the shadows of the old covenant find their substance in Christ and His church. From Eden’s order through the Exodus deliverance to the cross of Christ our Passover and the final day of the Lord, redemptive history moves toward a holy people, purged of all corruption, presented blameless before God. The discipline of 1 Corinthians 5 is thus no mere administrative procedure but a participation in God’s great purpose to redeem and sanctify a people for His own glory.

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Systematic Theology Connection

Church Discipline and the Keys of the Kingdom. First Corinthians 5 is one of the great New Testament texts on church discipline. Christ entrusted to His church “the keys of the kingdom of heaven” (Matthew 16:19; 18:18; John 20:23), the authority to admit to and exclude from the visible fellowship of God’s people. Paul exercises and commands this authority: the church, “assembled in the name of the Lord Jesus” and “with the power of our Lord Jesus” (v. 4), is to “deliver this man to Satan” (v. 5) and to “purge the evil person” (v. 13). The Westminster Confession (30.1–2) teaches that “the Lord Jesus, as King and Head of His Church, hath therein appointed a government in the hand of Church officers… To these officers the keys of the kingdom of heaven are committed; by virtue whereof, they have power respectively to retain, and remit sins; to shut that kingdom against the impenitent… and to open it… by absolution from censures, as occasion shall require.” The ends of discipline are threefold (30.3): “for the reclaiming and gaining of offenders; for deterring of others from the like offences; for purging out of that leaven which might infect the whole lump; for vindicating the honour of Christ.” The censures progress “from admonition, to suspension from the sacrament of the Lord’s Supper… and from excommunication” (30.4). Church discipline is the loving exercise of Christ’s authority for the purity of the church, the deterrence of sin, and the restoration of the fallen. Scripture cross-references: Matthew 18:15–20; 2 Corinthians 2:5–11; Galatians 6:1; 2 Thessalonians 3:14–15; Titus 3:10. Practically, it summons churches to neither neglect discipline (as Corinth did) nor abuse it, but to exercise it soberly, biblically, and with a view to restoration.

The Nature and Holiness of the Church. This chapter assumes a high doctrine of the church as the holy, set-apart people of God. The church is not a voluntary club of like-minded individuals but the body of Christ and the temple of the Holy Spirit (1 Corinthians 3:16–17; 6:19), called to reflect the holiness of her Lord. The visible church is “the kingdom of the Lord Jesus Christ, the house and family of God” (Westminster Confession 25.2), and out of it “there is no ordinary possibility of salvation.” Because the church is holy, she cannot tolerate unrepented, flagrant sin without dishonoring Christ and compromising her witness. The holiness of the church is not optional but essential to her identity as the redeemed people of a holy God. The quotation of Deuteronomy’s “purge the evil” (v. 13) places the new covenant church in continuity with the holiness required of Israel (1 Peter 2:9; 1:15–16). Scripture cross-references: Ephesians 5:25–27 (Christ cleanses the church to present her holy); 2 Corinthians 6:16–18; Hebrews 12:14. Practically, the doctrine calls every member to take seriously their participation in a holy community, guarding both personal and corporate purity, and recognizing that what one tolerates affects the whole body.

Sanctification and the Pursuit of Holiness. Paul’s command to “cleanse out the old leaven” (v. 7) and to celebrate the festival “with the unleavened bread of sincerity and truth” (v. 8) expresses the doctrine of sanctification. Sanctification is the gracious work of God by which believers, already definitively set apart in Christ, are progressively conformed to His holiness (Westminster Shorter Catechism Q. 35: “the work of God’s free grace, whereby we are renewed in the whole man after the image of God, and are enabled more and more to die unto sin, and live unto righteousness”). The passage exhibits the indicative-imperative structure of sanctification: believers “really are unleavened” in Christ (the indicative of definitive sanctification) and are therefore commanded to “cleanse out the old leaven” (the imperative of progressive sanctification). Holiness is both a gift already given in Christ and a calling to be pursued in dependence on the Spirit. The motive is the gospel: “For Christ, our Passover lamb, has been sacrificed” (v. 7). Scripture cross-references: Romans 6:11–14; 2 Corinthians 7:1; Colossians 3:1–10; 1 Thessalonians 4:3, 7; Hebrews 12:14. Practically, the doctrine fuels the believer’s war on sin, grounding it in the finished work of Christ and directing it toward the purity that befits a redeemed people, neither despairing self-effort nor presumptuous passivity.

Christ Our Passover and the Atonement. The declaration “Christ, our Passover lamb, has been sacrificed” (v. 7) is a rich statement of the atonement. The Passover of Exodus 12 was the foundational redemptive event of the old covenant: the lamb was slain, its blood applied, and the people delivered from death and bondage. Christ is the antitype and fulfillment, the true Passover Lamb whose sacrificial death redeems His people from sin and death and consecrates them as a holy nation. The atonement is here presented as a definite, accomplished sacrifice (etythē, aorist, “was sacrificed”), securing the redemption of His people. This accords with the Reformed doctrine of particular, substitutionary atonement: Christ “purchased… reconciliation, and an everlasting inheritance in the kingdom of heaven, for all those whom the Father hath given unto Him” (Westminster Confession 8.5). The Passover imagery emphasizes both deliverance (from judgment, as the destroying angel passed over) and consecration (the redeemed become a holy people). Scripture cross-references: John 1:29; 19:36; 1 Peter 1:18–19; Revelation 5:9, 12; Exodus 12. Practically, the doctrine grounds the believer’s assurance in Christ’s finished sacrifice and supplies the deepest motive for holiness, that those bought by the Lamb’s blood live as His purchased, purged people.

Perseverance of the Saints and the Aim of Discipline. The purpose clause of verse 5 — discipline aimed “so that his spirit may be saved in the day of the Lord” — touches the doctrine of perseverance. The severest discipline of the church serves the final salvation of the offender, reflecting God’s purpose to preserve His own. The discipline of the church is one of the means God uses to bring His wandering people to repentance and to preserve them unto final salvation. The Westminster Confession (17.3) acknowledges that true believers may “fall into grievous sins… and, for a time, continue therein,” incurring God’s displeasure and grieving the Spirit, yet they shall be “renewed… unto salvation.” Church discipline is one instrument of that renewal. The case likely concludes in 2 Corinthians 2:5–11 with the offender’s repentance and restoration, demonstrating discipline’s saving fruit. Scripture cross-references: John 10:28–29; Romans 8:30; Philippians 1:6; Hebrews 12:5–11; 1 Corinthians 11:32 (“when we are judged by the Lord, we are disciplined so that we may not be condemned”). Practically, the doctrine assures the church that loving discipline is hopeful work, expecting that God may use even excommunication to recover the straying, and it comforts the disciplined believer that God’s severity is the severity of a Father who will not let His own be lost.

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Reformed Theology

First Corinthians 5 stands as a foundational text for the Reformed understanding of the church, its holiness, and its discipline, and it situates these firmly within the covenant of grace and the redemptive-historical fulfillment of the old covenant types in Christ. The Reformed tradition has always recognized the church as the covenant community of God’s redeemed people, and this chapter displays both the privilege and the responsibility of that identity. The church is the new covenant Israel, the holy nation purchased by the blood of the Lamb (1 Peter 2:9; Galatians 6:16), and as such it is summoned, like old covenant Israel, to “purge the evil person from among you” (v. 13). Calvin, commenting on this chapter, insists that the church is “the sanctuary of God” and must not be “polluted by the toleration of wickedness,” and he sees in Paul’s appeal to the Passover a vivid demonstration that “Christ, having once been sacrificed, requires of us a perpetual feast of holiness.”

The Reformed doctrine of the marks of the true church finds support here. The Belgic Confession (Article 29) names the pure preaching of the gospel, the right administration of the sacraments, and the exercise of church discipline as the marks by which the true church is known. First Corinthians 5 is among the clearest scriptural warrants for the third mark. Discipline is not an optional appendage to the church’s life but one of the very signs of her authenticity, the means by which she guards the purity of the gospel and the sacraments and maintains her witness to a holy God. The Corinthian failure was precisely a failure of this mark: a church that boasted in spiritual gifts (chapters 12–14) yet neglected the discipline that holiness requires.

The chapter also illuminates the Reformed understanding of the keys of the kingdom. Christ committed to His church the authority to bind and loose (Matthew 16:19; 18:18), and the Westminster Confession (30.2) teaches that church officers may “shut that kingdom against the impenitent, both by the Word and censures.” Paul’s command to “deliver this man to Satan” (v. 5) is the exercise of this very authority, acting “with the power of our Lord Jesus” (v. 4). The Reformed tradition stresses that this power is ministerial and declarative, not magisterial and absolute; the church does not create the verdict but declares God’s, binding on earth what is bound in heaven.

The typology of the passage is a hallmark of Reformed biblical theology. Geerhardus Vos and others have shown how the Old Testament types find their fulfillment in Christ; here the Passover lamb and the Feast of Unleavened Bread are fulfilled in “Christ, our Passover lamb, has been sacrificed” (v. 7). The Reformed insistence on the unity of the covenants is evident: the same God who redeemed Israel by the blood of the lamb redeems the church by the blood of Christ, and the same holiness He required of Israel He requires of the church. The shadows of the old covenant give way to the substance in Christ, and the redeemed people of both covenants are called to the same separation from corruption.

Finally, the chapter exhibits the Reformed conviction concerning law and gospel rightly related. The gospel — “Christ, our Passover lamb, has been sacrificed” — is the ground and motive of the imperative to holiness. R.C. Sproul observed that “the indicative of grace always precedes and empowers the imperative of obedience.” Sinclair Ferguson notes that Christian holiness is “the working out of what God has worked in,” never a striving to earn what is already given. The believer purges the leaven not to become unleavened, but because in Christ he already is. Thus the chapter weds the freeness of grace to the seriousness of holiness, the comfort of the gospel to the rigor of discipline, in a manner thoroughly characteristic of Reformed theology, all to the end that the church might be the spotless bride Christ died to present to Himself (Ephesians 5:25–27).

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Dispensational Theology

A Dispensational reading of 1 Corinthians 5 shares much common ground with the Reformed interpretation regarding the seriousness of sin, the necessity of church discipline, and the fulfillment of the Passover in Christ, while bringing its own distinctive emphases drawn from a consistently literal-grammatical hermeneutic and the Israel/Church distinction. Dispensational interpreters such as C.I. Scofield, Charles Ryrie, John Walvoord, and J. Dwight Pentecost read this chapter as instruction for the church in the present age of grace, addressing the conduct proper to the body of Christ during this dispensation.

A foundational Dispensational conviction is the sharp distinction between Israel and the Church. Whereas Reformed theology sees substantial continuity, regarding the church as the new covenant Israel and applying Israel’s holiness directly to the church, Dispensationalism maintains that the church is a distinct entity, a “mystery” not revealed in the Old Testament (Ephesians 3:1–6) and inaugurated at Pentecost. On this view, when Paul applies the Deuteronomic “purge the evil person from among you” to the church (v. 13), he is drawing a moral principle from Israel’s experience for application to the church, not identifying the church as Israel. The principle of God’s people being holy is transdispensational, but the church and Israel remain distinct programs of God. Ryrie would stress that the abiding moral standard reflects God’s unchanging character, applied appropriately to each dispensation, while the specific civil penalties of the Mosaic theocracy (such as the death penalty for incest, Leviticus 20:11) are not carried over; the church’s penalty is excommunication, not execution, reflecting the change of dispensation.

Dispensationalism’s literal-grammatical hermeneutic yields a straightforward reading of the chapter’s commands. The “deliver to Satan” of verse 5 is understood as genuine excommunication, removing the offender from the sphere of the church’s fellowship and protection into Satan’s domain, the world (1 John 5:19). Walvoord and others typically take “the destruction of the flesh” as the affliction of the sinful nature or even physical chastening, with the clear remedial goal “that his spirit may be saved in the day of the Lord.” The “day of the Lord” is read in its eschatological sense, and Dispensationalists, with their detailed prophetic framework, would relate the believer’s ultimate salvation to the future program of God, including the rapture and the judgment seat of Christ (the bēma, 2 Corinthians 5:10), where the believer’s works are assessed though salvation itself is secure.

Regarding Christ our Passover (v. 7), Dispensationalists fully affirm that the Passover of Exodus 12 is typologically fulfilled in Christ’s sacrifice. Scofield’s notes highlight the Passover lamb as a type of Christ, and Dispensational theology, with its strong emphasis on biblical typology and the literal fulfillment of Old Testament patterns, embraces this identification. The slain Lamb secures redemption for the church in the present dispensation of grace, and the call to keep the feast “with sincerity and truth” governs the believer’s walk in this age.

On church discipline, Dispensationalists agree that it is a present obligation of the local church, exercised for the purity of the body and the restoration of the offender. Pentecost and others stress the local-church focus of the chapter, the assembled congregation acting under apostolic and ultimately Christ’s authority. The future-Israel emphasis of Dispensationalism appears less directly in this chapter, which concerns present church conduct, but the broader Dispensational framework would situate the church’s present holiness within God’s larger program that includes a future restoration of national Israel and a literal millennial kingdom (Romans 11:25–27; Revelation 20). The church’s discipline and holiness in this age anticipate the consummation of all God’s purposes, distinct programs for Israel and the church alike converging in the glory of Christ. Thus, while differing on the Israel/Church relationship and the degree of covenantal continuity, Dispensational theology joins the Reformed in affirming the chapter’s central call: because Christ our Passover has been sacrificed, the church must be a holy, purged, festal people.

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