Ecclesiastes 10:8-10 NIV

8 Whoever digs a pit may fall into it; whoever breaks through a wall may be bitten by a snake.

References for Ecclesiastes 10:8

9 Whoever quarries stones may be injured by them; whoever splits logs may be endangered by them.

References for Ecclesiastes 10:9

10 If the ax is dull and its edge unsharpened, more strength is needed, but skill will bring success.