Bearing False Witness: Is All Lying a Sin?

Most people learned this commandment in the King James wording, “Thou shalt not bear false witness against thy neighbour.” Modern translations put it more plainly:

You shall not give false testimony against your neighbor.

Exodus 20:16

The language comes from the courtroom. The Hebrew says, literally, “you shall not answer against your neighbor as a lying witness.” In ancient Israel there were no police investigators or forensic labs. A case stood or fell on what witnesses said, and the law required at least two of them: “at the mouth of two witnesses, or at the mouth of three witnesses, shall a matter be established” (Deuteronomy 19:15). A lying witness could take a man’s land, his freedom or his life. So the law gave the liar the sentence he had tried to bring on his neighbor (Deuteronomy 19:18–19).

The short answer: bearing false witness means telling lies about another person, first of all in court, where false testimony can destroy an innocent life. The Bible widens it to every kind of lying that harms a neighbor: slander, gossip, false accusations and twisting the truth to damage someone’s reputation. Most Christians believe it also rules out lying in general, though they disagree about hard cases where a lie would save a life. It is one of the ten words in The Ten Commandments: What Each One Means.

The Bible’s clearest picture of this sin is the story of Naboth. King Ahab wanted Naboth’s vineyard, and Naboth would not sell his family land. So Queen Jezebel arranged a public fast, seated Naboth in a place of honor, and hired two worthless men to stand up and testify that he had cursed God and the king. The town stoned him, and Ahab took the vineyard (1 Kings 21:1–16). Every step looked legal. Two witnesses spoke; a court acted. That is what makes false witness so dangerous: it turns the machinery of justice into a weapon.

The same thing happened to Jesus. At his trial before the council, “many gave false testimony against him, and their testimony didn’t agree with each other” (Mark 14:56). Proverbs puts the false witness on a list of the things God hates most:

There are six things which the LORD hates; yes, seven which are an abomination to him: haughty eyes, a lying tongue, hands that shed innocent blood, a heart that devises wicked schemes, feet that are swift in running to mischief, a false witness who utters lies, and he who sows discord among brothers.

Proverbs 6:16–19

When Moses repeats the commandment in Deuteronomy 5:20, he uses a different word for “false”: shav, which means empty or worthless. It is the same word as in the commandment against taking God’s name “in vain” (see What Does Taking the Lord’s Name in Vain Mean?). Empty words about God and empty words about your neighbor are treated as close relatives.

Read narrowly, the commandment is about testimony in court. But the rest of the Bible does not stay narrow. The same chapter of the law that says “love your neighbor as yourself” also forbids lying and going about as a slanderer (Leviticus 19:11, 16, 18). The prophets and wisdom writers say it again and again:

Lying lips are an abomination to the LORD, but those who do the truth are his delight.

Proverbs 12:22

Jesus called the devil a liar and the father of lies (John 8:44), and Paul told the churches, “Don’t lie to one another, seeing that you have put off the old man with his doings” (Colossians 3:9). Truthfulness is not one virtue among many in the Bible. It reflects the character of a God who “can’t lie” (Titus 1:2).

So Christian teaching has always applied the commandment to lying in general. The Catholic Catechism defines a lie as “speaking a falsehood with the intention of deceiving” (§2482), and it treats the gravity of a lie as depending on the harm it does and the truth it distorts (§2484). Protestant catechisms say much the same. Luther’s Small Catechism explains the commandment this way: we should not lie about our neighbor, betray him or hurt his reputation, but defend him, speak well of him, and “explain everything in the kindest way.”

If every lie is wrong, what about the Bible’s own liars? Two stories come up whenever Christians argue about this commandment. When Pharaoh ordered the Hebrew midwives to kill newborn boys, they refused:

But the midwives feared God, and didn’t do what the king of Egypt commanded them, but saved the baby boys alive.

Exodus 1:17

Questioned by Pharaoh, they told him the Hebrew women gave birth before a midwife could arrive (1:19), and “God dealt well with the midwives” (1:20). Later, in Jericho, Rahab hid two Israelite spies and sent the king’s men off in the wrong direction (Joshua 2). The New Testament praises her twice, for her faith (Hebrews 11:31) and for her actions (James 2:25).

The modern version of the question is the murderer at the door, or the family hiding Jewish neighbors from the Nazis. Christians answer it in three main ways:

• Every lie is wrong. Augustine, Thomas Aquinas and later Immanuel Kant held that even a lie to save a life is a sin. The midwives and Rahab were rewarded for their courage and faith, not for the lie itself, and one should look for silence or evasion instead.
• Not every falsehood is a lie in the forbidden sense. The commandment protects a neighbor’s right to the truth, and someone seeking to murder has given that right up. The Catholic Catechism itself says that no one is bound to reveal the truth “to someone who does not have the right to know it” (§2489), and the jurist Hugo Grotius argued along these lines.
• The lesser evil. Some Christians hold that lying to a murderer is still wrong, but that refusing to save an innocent life would be worse, so they choose the lie and ask forgiveness for it.

What all three share is that none of them makes lying easy. The hard cases are hard because truth matters so much.

Very few of us will ever testify in a murder trial. But most of us speak about other people every day, and that is where this commandment lives now. Paul gives the reason truthfulness matters inside a community:

Therefore putting away falsehood, speak truth each one with his neighbor. For we are members of one another.

Ephesians 4:25

A few ways to keep it:

• Check before you share. Forwarding an accusation you have not verified, or a screenshot without its context, is a modern form of false witness.
• Don’t tell the story in your favor. Most dishonesty is not invented; it is selected. Leave in the parts that make you look worse.
• Refuse gossip, even when it is true. True information passed around to lower someone in others’ eyes still harms their name.
• Speak up for the absent. Luther’s “defend him” is the active side of the commandment: when someone is misrepresented, say so.
• Be kind without being false. Truth can be told gently, at the right time, or sometimes not volunteered at all. Paul’s phrase is “speaking truth in love” (Ephesians 4:15).

And when you fail, tell the truth about that too. Correcting a story you got wrong is one of the most practical ways to keep this commandment.

What does it mean to bear false witness?

To bear false witness is to tell lies about another person, especially as a witness in court. The Hebrew of Exodus 20:16 literally means answering against your neighbor as a lying witness. The Bible extends it to slander, false accusations, gossip and any lie that harms someone’s reputation.

Is all lying a sin?

The Bible treats lying as sin (Proverbs 12:22; Colossians 3:9), and most Christian traditions teach that it is always wrong to lie in order to deceive. Christians disagree about extreme cases, such as lying to a murderer to save a life. Some say even that is a sin, others that such a person has no right to the truth.

Is a white lie a sin?

Most Christian traditions say yes, though a small one. Catholic teaching treats lies as more or less serious depending on the harm they do. The usual advice is to look for a way to be kind and truthful at once: tact, timing and choosing what to say, rather than saying what is false.

Is gossip bearing false witness?

Gossip that spreads untrue or exaggerated stories clearly is. Even true gossip, told to damage someone’s standing, breaks the spirit of the commandment, which protects your neighbor’s good name. Leviticus 19:16 forbids going about as a slanderer, and Proverbs warns against “he who sows discord among brothers” (6:19).

Which commandment is “You shall not bear false witness”?

It is the ninth commandment in Protestant, Orthodox and Jewish counts, and the eighth in Catholic and Lutheran ones. The words are the same in every Bible (Exodus 20:16; Deuteronomy 5:20); Catholic vs Protestant Ten Commandments explains why the numbers differ.