Ecclesiastes 10:7-10 King James Version (KJV)

7. I have seen servants upon horses, and princes walking as servants upon the earth.

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

9. Whoso removeth stones shall be hurt therewith; and he that cleaveth wood shall be endangered thereby.

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

Ecclesiastes 10