Companion: Deep Study
A condensed companion to the full study. For each section of the expanded outline: key insights, applications, and the application questions for discussion.
Section 1 — The God Who Speaks: Grace Before Law (Exodus 20:1–2)
Key Insights
- The Decalogue is direct divine speech — “And God spoke all these words” — carrying the Creator’s own authority (Exodus 20:1).
- The preamble anokhi YHWH (“I am the LORD your God”) sets the whole law inside a covenant relationship God Himself initiated.
- Grace precedes law: God redeemed Israel from the “house of slavery” before He gave a single command (Exodus 20:2).
- The singular “you” makes the covenant personal — God addresses each member of His people by name, not humanity in the abstract.
- The exodus is the pattern of the greater exodus accomplished by Christ, who delivers His people from slavery to sin and death (Luke 9:31).
Applications
- Begin every pursuit of obedience by rehearsing redemption — obey because you are delivered, never in order to be delivered.
- Teach the commandments to children the way Moses did, answering “What do these rules mean?” with the story of rescue (Deuteronomy 6:20–25).
- Treat obedience as a thank-offering, not an entrance application for God’s acceptance.
Application Questions
- When you examine your obedience this week, does it flow from gratitude for redemption or from an attempt to earn God’s favor?
- What “house of slavery” has God brought you out of, and how often do you consciously remember it?
Section 2 — No Other Gods, No Graven Images (Exodus 20:3–6)
Key Insights
- The first commandment demands exclusive allegiance — no rival brought “before my face” of the God who redeemed you (Exodus 20:3).
- The second commandment governs the manner of worship: the true God must not be worshiped by humanly invented means, as the golden calf proved.
- Calvin calls the human heart “a perpetual factory of idols,” so idolatry is manufactured within before it is displayed without.
- God’s jealousy (qanna) is covenant love in protective mode — the zeal of a husband for an exclusive marriage (Exodus 34:14).
- The commandment’s longing is answered in Christ, “the image of the invisible God,” in whose face we behold God’s glory (Colossians 1:15).
Applications
- Hunt idols at the level of the heart by asking what you most fear to lose and where your mind runs when free.
- Evaluate worship by God’s appointment — Word, sacrament, and prayer — rather than by what moves or impresses you.
- Remember that your worship shapes generations, since steadfast love runs to thousands of those who love Him (Exodus 20:6).
Application Questions
- What functional idols compete for your deepest trust, and what would it look like to dethrone one of them this month?
- How does your practice of worship — private and corporate — reflect God’s right to determine how He is approached?
Section 3 — The Name and the Sabbath (Exodus 20:7–11)
Key Insights
- Taking the name “in vain” means bearing God’s name emptily — in false oaths, glib worship, or a life that defames the God we profess (Exodus 20:7).
- Zakhor (“remember”) marks the Sabbath as covenant memory, a rhythm already given in the manna and now enshrined in law.
- The Sabbath is a creation ordinance, grounded in God’s own six-and-one pattern of work and rest (Genesis 2:2–3).
- The command’s breadth — children, servants, sojourners, animals — makes rest a weekly proclamation that no creature exists merely to produce.
- Christ is Lord of the Sabbath, and the weekly day points to the final rest He gives to all who come to Him (Matthew 11:28).
Applications
- Guard the name you carry in baptism through truthful speech, engaged worship, and conduct that adorns the gospel.
- Receive the Lord’s Day as gift before duty, planning worship, mercy, and rest instead of letting the day happen by accident.
- Build rest into the lives of those under your authority, for the Sabbath was made for man (Mark 2:27).
Application Questions
- In what ways do you bear God’s name emptily — in speech, in worship, or in the gap between your profession and your practice?
- What would need to change for the Lord’s Day to become a delight to you rather than an interruption or an afterthought?
Section 4 — Love of Neighbor: The Second Table (Exodus 20:12–17)
Key Insights
- The fifth commandment bridges the tables: kabbed (“honor”) gives parents — and all lawful authority — a weight akin to glory (Exodus 20:12).
- The prohibitions guard the neighbor’s life, marriage, property, and reputation, because man bears the image of God (Genesis 9:6).
- The tenth commandment legislates desire itself, exposing the heart in a way no human law code ever attempted (Romans 7:7).
- Jesus’ Sermon on the Mount recovers the second table’s original depth, tracing murder to anger and adultery to the lustful look (Matthew 5:21–28).
- Christ alone kept the second table from the heart, and His obedience is credited to all who believe (Romans 5:19).
Applications
- Honor parents at every stage — obedience in childhood, respect in adulthood, provision in their old age (Mark 7:9–13).
- Make peace quickly and refuse contempt, treating anger and grudges as the seedlings of murder (Matthew 5:23–24).
- Take the tenth commandment as your daily examiner, asking not only “What have I done?” but “What have I wanted?”
Application Questions
- Which relationship in your life is currently most strained by a violation of these commands — anger, lust, dishonesty, or envy — and what step of repentance does this passage require of you?
- Where does covetousness most readily take hold of your desires, and what practices of contentment could you set against it?
Section 5 — The People Tremble and Moses Mediates (Exodus 20:18–21)
Key Insights
- The theophany of thunder, fire, and smoke shatters Israel’s confident “All that the LORD has spoken we will do” (Exodus 19:8).
- Israel’s plea for someone to stand between them and God creates the office of mediator at the heart of biblical religion (Exodus 20:19).
- Moses distinguishes two fears: servile terror that flees from God is forbidden, while filial fear that restrains sin is commanded (Exodus 20:20).
- Moses entering the thick darkness (arafel) alone for the people is the Old Testament’s great picture of mediation (Exodus 20:21).
- Christ is the one Mediator who entered the darkness of the curse itself, so that we come not to Sinai’s terror but to Zion’s grace (Hebrews 12:24).
Applications
- Cultivate reverence deliberately in worship and speech, for our God remains a consuming fire (Hebrews 12:28–29).
- After failure, resist the reflex to stand “far off” — draw near through your Mediator with confidence (Hebrews 4:16).
- Hold fear and love together, since fear without love becomes torment and love without fear becomes presumption.
Application Questions
- Is your instinct in seasons of failure to stand “far off” from God or to draw near through your Mediator, and why?
- What would cultivating a healthy fear of God look like in your approach to worship, Scripture, and daily obedience this week?
Section 6 — The Altar of Sacrifice: Worship on God’s Terms (Exodus 20:22–26)
Key Insights
- The chapter ends not with commandments but with an altar — God appends atonement to law so guilty people can still meet Him (Exodus 20:24).
- The promise of presence — “I will come to you and bless you” — attaches to God’s name remembered, not to human grandeur.
- The uncut stones teach that human craftsmanship adds nothing to the meeting of God and sinners: “if you wield your tool on it you profane it” (Exodus 20:25).
- God, not the worshiper, determines acceptable worship — Israel heard a voice and saw no form, so worship is governed by the word heard.
- The burnt and peace offerings foreshadow Christ, the final sacrifice and true altar through whom we have peace with God (Romans 5:1).
Applications
- Never end your study of the law short of the altar — move from conviction of sin to the finished sacrifice of Christ.
- Judge worship by God’s appointment and promised presence, asking “Was God honored?” rather than “Was I impressed?”
- Let grace produce carefulness, not casualness, since the same passage that bans hewn stones also commands reverent approach (Ecclesiastes 5:1).
Application Questions
- When the law exposes your sin, do you habitually move to the “altar” — the finished sacrifice of Christ — or do you attempt self-atonement through guilt, penance, or renewed resolutions?
- Does your evaluation of worship — the services you attend or help lead — rest on God’s appointment and promised presence, or on human impressiveness?
The mountain that thundered the law now points us to the Mediator who kept it, bore its curse, and brings his people to God with the promise, “I will come to you and bless you.”
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