Proverbs 17:28

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

Job 13:5

O that you would altogether hold your peace! and it should be your wisdom.

Proverbs 15:2

The tongue of the wise uses knowledge aright: but the mouth of fools pours out foolishness.

Ecclesiastes 5:3

For a dream comes through much business; and a fool's voice is known by a multitude of words.

Ecclesiastes 10:3

Yea also, when he that is a fool walks by the way, his wisdom fails him, and he says 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?

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