Proverbs 12:23
A prudent man keeps his knowledge, but the hearts of fools proclaim foolishness.
Proverbs 13:16
Every prudent man acts from knowledge, but a fool exposes folly.
Proverbs 15:2
The tongue of the wise commends knowledge, but the mouth of fools gush out folly.
Proverbs 11:13
One who brings gossip betrays a confidence, but one who is of a trustworthy spirit is one who keeps a secret.
Proverbs 10:14
Wise men lay up knowledge, but the mouth of the foolish is near ruin.
Proverbs 10:19
In the multitude of words there is no lack of disobedience, but he who restrains his lips does wisely.
Ecclesiastes 10:3
Yes also, when the fool walks by the way, his understanding fails him, and he says to everyone that he is a fool.
Ecclesiastes 10:12-14
The words of a wise man's mouth are gracious; but a fool is swallowed by his own lips.