NET
20 Do not curse a king even in your thoughts, and do not curse the rich while in your bedroom; for a bird might report what you are thinking, or some winged creature might repeat your words.
Darby
20 Curse not the king, no, not in thy thought; and curse not the rich in thy bedchamber: for the bird of the air will carry the voice, and that which hath wings will tell the matter.
KJV
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.