Ecclesiastes 10:9 in the King James Version
Whoso removeth stones shall be hurt therewith; and he that cleaveth wood shall be endangered thereby.
Context
8 He who digs a pit may fall into it; and whoever breaks through a wall may be bitten by a snake.
9 Whoever carves out stones may be injured by them. Whoever splits wood may be endangered by it.
10 If the ax is blunt, and one doesn’t sharpen the edge, then he must use more strength; but skill brings success.