Proverbs 26:5
"Answer a fool according to his folly, lest he be wise in his own conceit."
Cross References (ranked by relevance)
Be of the same mind one toward another. Mind not high things, but condescend to men of low estate. Be not wise in your own conceits.
This witness is true. Wherefore rebuke them sharply, that they may be sound in the faith;
The rich man is wise in his own conceit; but the poor that hath understanding searcheth him out.
Be not wise in thine own eyes: fear the LORD, and depart from evil.
So when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her.
Answer not a fool according to his folly, lest thou also be like unto him.
For I would not, brethren, that ye should be ignorant of this mystery, lest ye should be wise in your own conceits; that blindness in part is happened to Israel, until the fulness of the Gentiles be come in.
Seest thou a man wise in his own conceit? there is more hope of a fool than of him.
Woe unto them that are wise in their own eyes, and prudent in their own sight!