a fool's
Ecclesiastes 10:12-14
12
The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself.
13
The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.
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?
Proverbs 10:19
In the multitude of words there wanteth not sin: but he that refraineth his lips is wise.
Proverbs 15:2
The tongue of the wise useth knowledge aright: but the mouth of fools poureth out foolishness.