Ecclesiastes 10:11-15

11Surely the serpent will bite without enchantment; and a babbler is no better.1

12The words of a wise man’s mouth are gracious; but the lips of a fool will swallow up himself.2 13The beginning of the words of his mouth is foolishness: and the end of his talk is mischievous madness.3 14A fool also is full of words: a man cannot tell what shall be; and what shall be after him, who can tell him?4 15The labour of the foolish wearieth every one of them, because he knoweth not how to go to the city.