Deuteronomy 5:20 is a command from God not to lie about another person in a way that harms them. It forbids giving false testimony against your neighbor, meaning untrue statements meant to damage someone’s reputation or case. Moses speaks these words to the people of Israel as part of the Ten Commandments, which he repeats to a new generation before they enter the land God promised them.
“You shall not give false testimony against your neighbor.
Deuteronomy 5:20 (WEB)
What Deuteronomy 5:20 Means
The phrase “you shall not” is a direct prohibition, a boundary God sets for the community he is forming. The word “give” points to speaking, not just thinking, so the command is about what comes out of your mouth in a setting where people rely on your words, such as a courtroom, a dispute, or a rumor passed along in a community. The phrase “false testimony” means a statement that does not match the truth, whether invented outright or shaped to mislead.
“Against your neighbor” tells you who is in view. The command protects the person who could be hurt by the lie, the one whose livelihood, freedom, or good name is on the line. The verse does not, on its own, spell out every situation where honesty is complicated, such as protecting someone from harm or the proper handling of confidential matters. What it does establish is a clear line: God takes seriously the damage that deceit does to real people.
The Context of Deuteronomy 5:20
Deuteronomy is Moses’ farewell address to Israel on the plains of Moab, recorded as a series of speeches recalling what God has done and what he requires. Tradition has long attributed the book to Moses, though many scholars note it was shaped over time by later editors. Its first audience was the generation that had grown up in the wilderness, gathered to hear the law again before crossing the Jordan River.
The verse sits in a list of short commands in verses 17 through 21, placed among prohibitions against murder, adultery, and theft. That grouping matters: false testimony is listed alongside acts that violently or quietly take what belongs to someone else, showing that a lie can rob a person as surely as a theft. Verse 22 then notes that God spoke these words to the whole assembly from the fire and cloud on the mountain, and that he added nothing more, which gives the commands a weight that is meant to be taken seriously and remembered.
Key Phrases in Deuteronomy 5:20
Proverbs 19:9
A false witness shall not be unpunished. He who utters lies shall perish.
(WEB)
This proverb warns that a false witness will not go unpunished, echoing the seriousness of the command in Deuteronomy. It reinforces the idea that God sees and responds to deception that harms others.
Ephesians 4:25
Therefore putting away falsehood, speak truth each one with his neighbor. For we are members of one another.
(WEB)
Paul builds on the same principle, urging believers to put away falsehood and speak truthfully to one another because they belong to the same body. It shows how the old command about neighbors continues to shape life in the church.
A Short Prayer From Deuteronomy 5:20
Lord, you are a God of truth, and you care deeply about the people I speak about and to. Forgive me for the times I have shaded my words, repeated what I did not know, or let a convenient half-truth stand in for honesty. Give me courage to speak plainly when it is hard, and restraint to keep silent when a word would only wound. Let my words protect the good name of my neighbor and bring glory to your name. Amen.
