Ecclesiastes 10:8-15

⁸He that diggeth a pit shall fall into it; and whoever breaketh a hedge, a serpent shall bite him.

⁹Whoever removeth stones shall be hurt by them; and he that cleaveth wood shall be endangered by it.

¹⁰If the iron is blunt, and he doth not whet the edge, then must he use more strength: but wisdom is profitable to direct.

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

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?

¹⁵The labor of the foolish wearieth every one of them, because he knoweth not how to go to the city.