Ecclesiastes 10:10-12

Wycliffe Bible

¹⁰ If iron is folded again, and it is not as before, but is made blunt, it shall be made sharp with much travail; and wisdom shall follow after busyness.

¹¹ If a serpent biteth, it biteth in silence; he that backbiteth privily, hath nothing less than it (he who privately, or secretly, backbiteth someone is no better).

¹² The words of the mouth of a wise man be grace; and the lips of an unwise man shall cast him down. (The words out of the mouth of a wise person bring him favour; but the lips of an unwise person shall bring him down.)