Ecclesiastes 2:7; Ecclesiastes 7:21; Ecclesiastes 10:7

7 I got me servants and maidens, and had servants born in my house; also I had great possessions of great and small cattle above all that were in Jerusalem before me:
21 Also take no heed unto all words that are spoken ; lest thou hear thy servant curse thee:
7 I have seen servants upon horses, and princes walking as servants upon the earth.