Deuteronomy 29:20 is a solemn warning that God will not overlook a person who deliberately turns away from him while assuming he is safe. Moses describes God’s anger and jealousy burning against that person, and the covenant curses written in the book falling on him. The verse was spoken by Moses to the Israelites as they stood on the plains of Moab, just before they entered the Promised Land.
The LORD will not pardon him, but then the LORD’s anger and his jealousy will smoke against that man, and all the curse that is written in this book will fall on him, and the LORD will blot out his name from under the sky.
Deuteronomy 29:20 (WEB)
What Deuteronomy 29:20 Means
The verse begins with a stark statement: “The LORD will not pardon him.” The person in view has heard the words of the covenant curse, blessed himself in his heart, and decided that he can keep walking in his own stubbornness without consequence. Moses says that God will not grant forgiveness to someone who treats the covenant as a formality while secretly trusting in false gods.
Next comes the language of smoke and fire. Anger and jealousy “smoke” against the man, an image of a fire that is burning and cannot be put out. Jealousy here is not petty envy. It describes God’s exclusive commitment to his people, a zeal that refuses to share their loyalty with idols. The final lines describe the curse written in the book landing on him and his name being erased from under heaven, meaning he will be cut off from the people of God and remembered no longer.
The verse does not promise that every struggling believer will face this fate, nor does it describe someone who sins out of weakness and then repents. It is aimed at defiant, settled rebellion that dismisses God’s warnings altogether.
The Context of Deuteronomy 29:20
Deuteronomy presents itself as a series of speeches Moses gave to Israel in the final weeks before his death, restating the law and renewing the covenant. Traditionally Moses is regarded as its author, though many scholars see later editing. Its first audience was the new generation who had grown up in the wilderness and were preparing to cross the Jordan.
Verses 17 through 19 warn about hidden idolatry, a root that might produce bitter poison in the community. Verse 20 answers the man who thinks he can escape this danger by quietly hardening himself. Verses 21 through 23 then describe how the nations around Israel will see the desolation of that land and ask why it happened. Reading the verse inside this passage shows that its purpose is corporate as well as personal: a single rebellious heart threatens the health of the whole covenant community.
Key Phrases in Deuteronomy 29:20
Psalm 51:17
The sacrifices of God are a broken spirit. A broken and contrite heart, O God, you will not despise.
(WEB)
This verse shows the response God welcomes when a person has been stubborn. A broken and contrite heart is not despised, which balances the severity of Deuteronomy 29:20 with the mercy that meets genuine repentance.
Hebrews 3:15
While it is said, “Today if you will hear his voice, don’t harden your hearts, as in the rebellion.”
(WEB)
Hebrews takes up the warning about a hardened heart from the wilderness generation and applies it to believers. It urges daily encouragement toward faithfulness so that no one is hardened by the deceitfulness of sin.
A Short Prayer From Deuteronomy 29:20
Lord, you are holy, and you do not take lightly the turning of a heart away from you. I confess that I am capable of drifting while telling myself that all is well. Search me and show me any stubbornness I have covered with excuses. Soften what has grown hard, and draw me back to your presence with honesty and humility. Thank you that you call people to return rather than leaving them without hope. Amen.
