Proverbs 13:16Every prudent man dealeth with knowledge: but a fool layeth open his folly.
Proverbs 15:2The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.
Proverbs 11:13A talebearer revealeth secrets: but he that is of a faithful spirit concealeth the matter.
Proverbs 10:14Wise men lay up knowledge: but the mouth of the foolish is near destruction.
Proverbs 10:19In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.
Ecclesiastes 10:3Yea 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 10:12-14The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself. The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness. A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?