Ecclesiastes 10:10-12

Amplified Bible

¹⁰ If the axe is dull and he does not sharpen its edge, then he must exert more strength; but wisdom [to sharpen the axe] helps him succeed [with less effort]. ¹¹ If the serpent bites before being charmed, then there is no profit for the charmer. ¹² The words of a wise man’s mouth are gracious and win him favor, but the lips of a fool consume him;