Matthew
But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.
And every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand:
Ye fools and blind: for whether is greater, the gold, or the temple that sanctifieth the gold?
1 Corinthians
Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.
But God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty;
Let no man deceive himself. If any man among you seemeth to be wise in this world, let him become a fool, that he may be wise.
We are fools for Christ's sake, but ye are wise in Christ; we are weak, but ye are strong; ye are honourable, but we are despised.
2 Timothy
Titus
But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.