Proverbs 17:28 Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.

Amos 5:13 Therefore the prudent shall keep silence in that time; for it is an evil time.

Ecclesiastes 5:3 For a dream cometh through the multitude of business; and a fool's voice is known by multitude of words.