Read Ecclesiastes 10:20 Using Other Translations
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.
Even in your thoughts, do not curse the king, nor in your bedroom curse the rich, for a bird of the air will carry your voice, or some winged creature tell the matter.
Never make light of the king, even in your thoughts. And don’t make fun of the powerful, even in your own bedroom. For a little bird might deliver your message and tell them what you said.