Ecclesiastes 10:12-14

¹²The words of a wise man’s mouth are gracious; but the lips of a fool will swallow up himself.

¹³The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.

¹⁴A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?