Proverbs 14:33
Wisdom rests in the heart of him who has understanding, but among fools it is made known.
Proverbs 12:16
A fool's vexation is known in a day, but the astute one covers shame.
Proverbs 29:11
A fool speaks all his mind; but a wise one keeps it in until afterwards.
Proverbs 12:23
A wise man conceals knowledge, but the heart of fools cries out foolishness.
Proverbs 13:16
Every wise one deals with knowledge, but a fool lays open his folly.
Proverbs 15:2
The tongue of the wise uses knowledge rightly, but the mouth of fools pours out foolishness.
Proverbs 15:28
The heart of the righteous studies to answer, but the mouth of the wicked pours out evil things.
Ecclesiastes 10:3
Yes also, in the way a fool walks, his heart fails; and he says to all that he is a fool.