Ecclesiastes 10:8-10

Young's Literal Translation

⁸ Whoso is digging a pit falleth into it, And whoso is breaking a hedge, a serpent biteth him.

⁹ Whoso is removing stones is grieved by them, Whoso is cleaving trees endangered by them.

¹⁰ If the iron hath been blunt, And he the face hath not sharpened, Then doth he increase strength, And wisdom [is] advantageous to make right.