Even a fool, when he holds his peace, is counted wise: and he that shuts his lips is esteemed a man of understanding.
Proverbs 15:2 The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness.
Job 13:5 O that you would altogether hold your peace! and it should be your wisdom.
Ecclesiastes 5:3 For a dream comes through the multitude of business; and a fool's voice is known by multitude of words.
Ecclesiastes 10:3,14 Yes also, when he that is a fool walks by the way, his wisdom fails him, and he said to every one that he is a fool...