Proverbs 10:18 Meaning: Hiding Hatred or Spreading Slander

The Hebrew word for hides or conceals (kasah) means to cover something deliberately, like putting a lid on a pot. It is an active choice. The word for hatred (sin'ah) is the same root used elsewhere for God’s hatred of evil, strong, real, not a passing irritation. So the first line describes someone who covers deep, committed anger with words that look friendly.

The phrase lying lips (siftei shaker) uses a word for falsehood that can mean deception, fraud, or betrayal. It is not just a slip of the tongue; it is a planned dishonesty.

The second line uses the word spreads (yatsa in a form that means to bring something out), and the word for slander (dibbah) is literally an evil report, a whispered story meant to damage someone. The verse calls that person a fool (kesil), a dull, thick-headed person who lacks sense. Both actions, secret hatred and open slander, are foolish because they harm others and deceive no one but ourselves.

Christians have read this verse as condemning two sides of the same problem. Some, like Adam Clarke, emphasize the common case of someone who pretends to have forgiven an injury while nursing revenge, those lying lips cover a wicked heart. Barnes’ Notes sees a distinction: one who hides hatred is a knave (a deceiver), while one who utters slander is a fool. Matthew Henry holds that both actions are foolish: the dissembler is a fool to think he can hide anything from God, and the slanderer is a fool who will eventually be exposed. Across traditions, the point holds: whether hatred is concealed or blurted out, it marks a life that is not walking in wisdom.

A common misreading is that the verse only calls the slanderer a fool, letting the secret hater off with a lesser charge. In fact, the first line condemns the hidden hatred by calling it a form of lying, and in the wisdom tradition, lying lips are always foolish. Both actions are wicked; both betray a heart that has not learned the fear of the Lord. The verse does not rank them; it exposes both.

This week, pay attention to the gap between what you feel and what you say. When someone has hurt you, do you cover it with polite words while resentment grows inside? That is the hidden hatred of the first line. Or do you find yourself repeating a story that makes someone look bad, perhaps even telling yourself it is just the truth? That is the slander of the second line. Wisdom invites you to deal with anger honestly before God, and to speak about others only in ways that would not shame you if they overheard. One small step: before you speak about someone today, ask whether your words would build up or tear down.