Even a fool, when he holdeth his peace, is counted wise: and he that shutteth his lips is esteemed a man of understanding.
Proverbs 15:2
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.
Job 13:5
O that ye would altogether hold your peace! and it should be your wisdom.
Ecclesiastes 5:3
For a dream cometh through the multitude of business; and a fool's voice is known by multitude of words.
Ecclesiastes 10:3
Yea also, when he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool.
Ecclesiastes 10:14
A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?