Ecclesiastes 10:10-12

Darby Translation

¹⁰ If the iron be blunt, and one do not whet the edge, then must he apply more strength; but wisdom is profitable to give success.

¹¹ If the serpent bite before enchantment, then the charmer hath no advantage.

¹² The words of a wise man's mouth are gracious; but the lips of a fool swallow up himself.