Ecclesiastes 10:9-11

21st Century King James Version

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

¹⁰ If the ax be blunt and one does not whet the edge, then must he put to it more strength; but wisdom is profitable to direct him.

¹¹ Surely the serpent will bite if not charmed, and a babbler is no better.