8. He that digs a pit shall fall into it; and whosoever breaks through a wall, a serpent shall bite him.
9. Whosoever quarries stones may be hurt by them; and he that splits wood shall be endangered by it.
10. If the iron is blunt, and he does not sharpen the edge, then must he use more strength: but wisdom helps one to succeed.
11. Surely the serpent will bite without enchantment; and a babbler is no better.
12. The words of a wise man's mouth are gracious; but the lips of a fool will swallow him up.
13. The beginning of the words of his mouth is foolishness: and the end of his talk is wicked 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?