Ecclesiastes 5:12; Ecclesiastes 10:6; Ecclesiastes 10:20

12 The sleep of a labouring man is sweet, whether he eat little or much: but the abundance of the rich will not suffer him to sleep.

6 Folly is set in great dignity, and the rich sit in low place.

20 Curse not the king, no not in thy thought; and curse not the rich in thy bedchamber: for a bird of the air shall carry the voice, and that which hath wings shall tell the matter.