Snapshot

Lord (Greek Kyrios) is the great confession of the early church: “Jesus is Lord” (Rom. 10:9). Applied to Jesus, the title claims for him the sovereign authority, divine dignity, and worship that belong to God alone — for Kyrios is the word the Greek Old Testament used to render the covenant name YHWH. To confess Jesus as Lord is to confess his deity, his resurrection-exaltation, and his rightful rule over all. “God has highly exalted him and bestowed on him the name that is above every name… and every tongue confess that Jesus Christ is Lord, to the glory of God the Father” (Phil. 2:9–11).

The Original Language

κύριος (kyrios), Strong’s G2962, “lord, master, owner, sir.” It ranges from a polite “sir” to “master” of slaves to the supreme “Lord” of all. Its weight comes from the Septuagint (the Greek Old Testament), which regularly translated both the divine name YHWH and the title Adonai as Kyrios. So when the New Testament calls Jesus Kyrios — and especially when it applies Old Testament YHWH/Kyrios texts directly to him — it is making the highest possible claim: that Jesus bears the name and shares the identity of the LORD of Israel. The confession “Jesus is Kyrios” was therefore no mere politeness; in a world that demanded “Caesar is lord,” it was a costly declaration of Christ’s divine and absolute sovereignty.

The Name in Its Context

The classic text is Paul’s hymn of Christ’s humiliation and exaltation:

“Therefore God has highly exalted him and bestowed on him the name that is above every name, so that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue confess that Jesus Christ is Lord, to the glory of God the Father.” (Phil. 2:9–11)

These words deliberately echo Isaiah 45:23, where YHWH declares, “To me every knee shall bow, every tongue shall swear allegiance” — and Paul applies them to Jesus. The confession is also the gate of salvation: “if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved” (Rom. 10:9). And it is the climax of Thomas’s faith before the risen Christ: “My Lord and my God!” (John 20:28).

Where It Appears in Scripture

Kyrios is applied to Jesus hundreds of times. Peter’s Pentecost sermon concludes, “God has made him both Lord and Christ, this Jesus whom you crucified” (Acts 2:36). The earliest Christian prayer was Maranatha, “Our Lord, come!” (1 Cor. 16:22). “No one can say ‘Jesus is Lord’ except in the Holy Spirit” (1 Cor. 12:3). Old Testament YHWH texts are routinely fulfilled in Jesus the Lord: “everyone who calls on the name of the Lord will be saved” (Joel 2:32; Rom. 10:13); “prepare the way of the Lord” (Isa. 40:3; Mark 1:3). He is “Lord of all” (Acts 10:36), “the Lord of glory” (1 Cor. 2:8), “King of kings and Lord of lords” (Rev. 19:16). The title runs back through Psalm 110:1 — “The LORD says to my Lord, ‘Sit at my right hand’” — which Jesus and the apostles take as the charter of his exaltation (Matt. 22:44; Acts 2:34–35; Heb. 1:13).

What This Name Reveals

“Lord” reveals Jesus’ deity — he bears the name Kyrios that translates YHWH, receives worship (John 20:28; Matt. 28:9), and shares the divine identity (Phil. 2:9–11). It reveals his sovereign authority: “All authority in heaven and on earth has been given to me” (Matt. 28:18); he is “Lord of all” (Acts 10:36), ruling over every power. It reveals the meaning of his resurrection and exaltation: God “made him both Lord and Christ” by raising and enthroning him (Acts 2:36) — the crucified one now reigns. It reveals the claim on the believer’s whole life: to call Jesus “Lord” is to own him as Master, to whom we belong and owe total allegiance (1 Cor. 6:19–20; Luke 6:46, “Why do you call me ‘Lord, Lord,’ and not do what I tell you?”). And it reveals the scope of his coming triumph: one day every knee will bow and every tongue confess — willingly or not — that Jesus Christ is Lord.

Seen and Fulfilled in Christ

As a title of Christ, “Lord” gathers up the Old Testament’s Adonai and YHWH and reveals them fulfilled in Jesus. Every place the Old Testament exalts the LORD’s lordship, the New Testament dares to confess Jesus there. Isaiah’s “every knee shall bow” to YHWH (Isa. 45:23) becomes every knee bowing to Jesus (Phil. 2:10). Joel’s “everyone who calls on the name of the LORD shall be saved” (Joel 2:32) becomes calling on Jesus (Rom. 10:13; Acts 2:21). The “Lord” enthroned at God’s right hand in Psalm 110:1 is Christ ascended (Acts 2:34–36). This is the apostolic church placing Jesus within the identity of the one God of Israel without abandoning monotheism: “for us there is one God, the Father… and one Lord, Jesus Christ” (1 Cor. 8:6) — splitting the Shema (Deut. 6:4) to include Jesus as the one Lord. The confession that cost the martyrs their lives — refusing “Caesar is lord” for “Jesus is Lord” — is the church’s deepest creed, vindicated in his resurrection and to be vindicated again at his return.

A Reformed Reflection

“Lord” is foundational to the Reformed confession of Christ’s deity and his kingly rule (Lordship), and to the whole of Christian discipleship as life lived under that Lordship. The Heidelberg Catechism opens with this very note of belonging: “I am not my own, but belong — body and soul, in life and in death — to my faithful Savior Jesus Christ” (HC Q. 1). To confess “Jesus is Lord” is to confess that we are “not our own, for [we] were bought with a price” (1 Cor. 6:19–20). Reformed theology has therefore resisted any divorce between trusting Christ as Savior and submitting to him as Lord: the same Jesus is both, and saving faith embraces him whole. His Lordship is also comprehensive — there is, in Abraham Kuyper’s famous phrase, no square inch of all creation over which the risen Christ does not cry, “Mine!” This grounds the Reformed vision of all of life lived Coram Deo, under the Lordship of Christ — work, family, citizenship, worship — for “he is Lord of all” (Acts 10:36). And it fuels hope: the present hiddenness of his reign will give way to its open manifestation when every knee bows (Phil. 2:10–11).

Application

• Make the confession personal and total. “Jesus is Lord” is not merely a doctrine but a surrender. Is there any area of your life over which you have not yet bowed to him?
• Obey, don’t just address. “Why do you call me ‘Lord, Lord,’ and not do what I tell you?” (Luke 6:46). Let the title bear fruit in glad obedience.
• Fear no earthly “lord.” Because Jesus is Lord of all, no Caesar, no power, no fear deserves the allegiance that belongs to him. Bow to Christ now, gladly, and you need bow to nothing else.

Reflection questions:

1. Is there a “square inch” of my life I have not surrendered to the Lordship of Christ?
2. Do my actions confess “Jesus is Lord,” or only my words?
3. How does Christ’s exalted Lordship steady me against the lesser “lords” that demand my allegiance?

For Prayer and Worship

Lord Jesus, God has highly exalted you and given you the name above every name. You are Kyrios, the Lord, sharing the very name and glory of God. I confess it now with joy: Jesus Christ is Lord, to the glory of God the Father. I am not my own; I belong to you. Reign over every part of my life, and let me bow to you now in love, with all who will one day bow before your throne. Amen.

Key Scripture References

• Phil. 2:9–11; Rom. 10:9, 13; Acts 2:36; Acts 10:36
• Ps. 110:1; Isa. 45:22–23; Joel 2:32
• John 20:28; 1 Cor. 8:6; 1 Cor. 12:3; Rev. 19:16

Related Names

• Adonai and Yahweh — the Old Testament names rendered Kyrios.
• Jesus; Christ — “Jesus Christ is Lord.”
• King of Kings and Lord of Lords.

Further Study

• Philippians 2:5–11; Romans 10:5–13; Acts 2:14–36.
• Psalm 110; 1 Corinthians 8:4–6.
• Heidelberg Catechism Q. 1, 34; WCF ch. 8.