Proverbs 17:26-28

Authorized (King James) Version

²⁶ Also to punish the just is not good,
    nor to strike princes for equity.

²⁷ He that hath knowledge spareth his words:
    and a man of understanding is of an excellent spirit.

²⁸ Even a fool, when he holdeth his peace, is counted wise:
    and he that shutteth his lips is esteemed a man of understanding.