Proverbs 12:23
A prudent man concealeth knowledge: but the heart of fools proclaimeth foolishness.
Proverbs 13:16
Every prudent man dealeth with knowledge: but a fool layeth open his folly.
Proverbs 15:2
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.
Proverbs 11:13
A tale-bearer revealeth secrets: but he that is of a faithful spirit concealeth the matter.
Proverbs 10:14
Wise men lay up knowledge: but the mouth of the foolish is near destruction.
Proverbs 10:19
In the multitude of words there wanteth not sin: but he that restraineth his lips is wise.
Ecclesiastes 10:3
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 10:12-14
The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself.