Ecclesiastes 10:9-11

Douay-Rheims 1899 American Edition

⁹ He that removeth stones, shall be hurt by them: and he that cutteth trees, shall be wounded by them.

¹⁰ If the iron be blunt, and be not as before, but be made blunt, with much labour it shall be sharpened: and after industry shall follow wisdom.

¹¹ If a serpent bite in silence, he is nothing better that backbiteth secretly.