The Grace That Saves Precedes the Law That Commands

Exodus 20:1–21

May 17, 2026

Text: Exodus 20:1–21

Introduction: Context and Scripture Reading

The sermon is set at Mount Sinai, Israel's final destination in Exodus — where they will remain through Leviticus and much of Numbers (roughly one year).
The Law (Exodus 20:1–23:33, "the book of the covenant") is framed by two moments of national commitment: Exodus 19:8 ("all that the Lord has spoken, we will do") and Exodus 24:7 (the same pledge repeated after the covenant is read aloud).
The central question posed to the congregation: Must you obey the commandments in order to be God's people, or do you obey because you are God's people? How one answers this question governs how all of Exodus 20 is read.
Scripture read in full as the preaching text: Exodus 20:1–21, with context from Exodus 19:16 onward.

I. Rescued by God (Exodus 20:1–2)

For the first time in Exodus, God speaks directly to the assembled people — underlining the supreme importance of these words.
Before any commandment is issued, God identifies himself: "I am the Lord your God, who brought you out of the land of Egypt, out of the house of slavery" (v. 2). Redemption is stated before obligation.
The rules were not given to bind the people further; they were given to set free people to live a better life.
The Ten Commandments are so familiar as a moral code that readers easily forget they do not begin with Commandment #1 — they begin with grace. The preamble is the theological key to everything that follows.
Doctrinal claim: God has always saved his people the same way — by grace alone, through faith alone, in Christ alone, to the glory of God alone, as revealed in his Word alone (the five solas of the Reformation). This pattern is as true in the Mosaic covenant as in the New Covenant.

Grace in Exodus Paralleled in Ephesians 2:1–10

Ephesians 2:8–9 declares salvation entirely as God's gift, not human achievement; v. 10 then grounds good works in God's prior creative work in us.
The first word in Ephesians 2:10 in the original is "his" — an emphatic placement putting all focus on God as the one who creates, redeems, and produces works in his people.
The parallel between Israel and the church: both were "as good as dead" (enslaved/dead in trespasses), both were set free by sovereign grace, and both are called to walk in a new way of life.
Application: Good works are never the ground of acceptance with God; they are the fruit of acceptance and the goal of his new-creation work. Those who work to earn God's love will burn out — they were never meant to sustain that effort alone.
Gospel call: Repentance and faith in Christ, independent of works, is the free offer of the gospel extended to those present who are not yet believers.

II. Rules from God (Exodus 20:3–17)

These commands were given to newly redeemed former slaves who had never known how to live as free people. For 450 years they had been directed by oppressors.
The commandments function not merely as legal prohibitions but as moral principles — shaping both individual behavior and corporate national life.
They comprehensively expose disordered loves: failure to give God what is his due, and failure to give others what is their due. Every sin falls into one or both categories.

The First Four Commandments: Toward God

1st Commandment (v. 3): No other gods — not a matter of priority order, but an absolute assertion that the Lord alone is the one true and living God. Radical in a polytheistic world.
2nd Commandment (v. 4): No carved images — worship must conform to how God has appointed it to be rendered, not through objects designed to provide immediate access. God's presence will be mediated rightly through the tabernacle.
3rd Commandment (v. 7): No misuse of the divine name — broader than profanity; forbids attaching God's name to anything that contradicts or misrepresents his character.
4th Commandment (vv. 8–11): Sabbath rest — communicates absolute dependence on God. Sabbath observance becomes the covenant sign and a litmus test of the Israelites' trust in God as provider and sustainer.

The Last Six Commandments: Toward Neighbor

5th Commandment (v. 12): Honor parents — not mere obedience but esteeming them as gifts from God across the whole arc of life, from a child's first breath to a parent's last.
6th Commandment (v. 13): No murder — human life is to be cherished and protected; no one may take innocent life without divine warrant.
7th Commandment (v. 14): No adultery — faithfulness in marriage reflects and enables faithfulness in all other relationships.
8th Commandment (v. 15): No stealing — do not take what belongs to another; give others what is their due.
9th Commandment (v. 16): No false witness — truthful testimony is the foundation of justice in a rightly ordered society.
10th Commandment (v. 17): No coveting — contentment with what God has given; disordered desire is the root driving most other violations.

Jesus's Summary of the Law (Matthew 22:34–40)

When tested by a lawyer, Jesus reduces all ten commandments to two: love God with all your heart, soul, and mind (Deuteronomy 6:5); love your neighbor as yourself (Leviticus 19:18).
The structure maps directly onto the two tables: commandments 1–4 (toward God) and 5–10 (toward neighbor).
Pastoral reduction: Ten → Two → One: love — expressed rightly toward God and neighbor as a comprehensive way of life.
Note on the Christian's relation to the law: Believers under the New Covenant are not under the commandments in exactly the same way Israel was at Sinai. Yet the Ten Commandments reveal God's righteous character and remain authoritative as a gift and guide for wise, holy living.

III. Reverence for God (Exodus 20:18–21)

The people's terror at the theophany (thunder, lightning, trumpet, smoke) causes them to retreat and ask Moses to mediate rather than hear God directly.
Moses's response distinguishes two kinds of fear: do not fear (craven, paralyzing dread) but let the fear of him be before you (reverent, sin-restraining awe). Both are present; the right one must govern.
Verses 18–21 serve as a structural bridge: they explain why the Ten Commandments were spoken directly by God while the book of the covenant (Exodus 20:22–23:33) is mediated through Moses, and they frame the whole section theologically.
Central claim: God is training and testing the people — teaching them that the terrifying God of Sinai is the same tender God of the Exodus. The grace that delivered them from Pharaoh is the grace that leads them safely into his presence.
Application: Because grace precedes and empowers, God's people can press into deeper repentance and deeper faith — not to earn God's love, but as those who have already been brought out.

Subplots and Secondary Threads

The five solas stated explicitly — the preacher names all five Reformation solas as the framework for reading Exodus 20:2 and Ephesians 2, arguing that the monergistic pattern of salvation is not a New Testament novelty but spans all of Scripture.
"It's grace all the way" — a paraphrase attributed to an unnamed commentator, used to guard against reading Ephesians 2:10 as a "works section" that offsets the "grace section" of vv. 8–9. Everything, including the good works, is God's work.
Ephesians 2:1–2 as foil to Ephesians 2:10 — the preacher draws a close parallel between Israel's 450 years of slavery and the believer's former walk "in trespasses and sins." Both before-and-after narratives are structurally identical: death/slavery → divine rescue → new walk.
The Greatest Showman (2017), song "From Now On" — used as the sermon's extended closing illustration. P. T. Barnum's years of working to earn status, love, and acceptance serve as an analogy for the exhausting futility of trying to make God love you through performance. The song's "repentance" moment is the pivot: he realizes his family's love was never contingent on his achievements — and neither is God's.
- Aside: Hugh Jackman's unrehearsed singing during the pitch meeting (filmed days after he received 80 stitches in his nose) is mentioned as worth finding on YouTube.
Pastoral illustration of the teenager — brief autobiographical reference: the preacher describes his former teenage self working exhaustingly to make God and others accept him, illustrating the burnout that comes from performance-based religion.
Challenge to self-assessed law-keepers — an ironic pastoral aside inviting anyone who believes they have kept the commandments well to re-read the list that afternoon, note the gap between knowledge and practice, and report back.

Closing Prayer

Gratitude for the gospel as the "good news that saves."
Petition that the congregation would genuinely trust that grace precedes law — and that this truth would govern their posture toward God, not merely be intellectually affirmed.
Confession on behalf of believers who have slipped into earning-mode: seeking a "more concrete and certain hope in Christ."
Intercession for those present who have not yet been freed from self-salvation — asking that the moment of the closing song would be the occasion of God's redeeming call.