Ecclesiastes 10:7-9

New International Version

⁷ I have seen slaves on horseback,
    while princes go on foot like slaves.^(A)

⁸ Whoever digs a pit may fall into it;^(B)
    whoever breaks through a wall may be bitten by a snake.^(C)
9 Whoever quarries stones may be injured by them;
    whoever splits logs may be endangered by them.^(D)