Parallel
Ecclesiastes 10:20
Rahlfs Septuagint (1935) · Berean Standard Bible
καί γε ἐν συνειδήσει σου βασιλέα μὴ καταράσῃ καὶ ἐν ταμιείοις κοιτώνων σου μὴ καταράσῃ πλούσιον ὅτι πετεινὸν τοῦ οὐρανοῦ ἀποίσει σὺν τὴν φωνήν καὶ ὁ ἔχων τὰς πτέρυγας ἀπαγγελεῖ λόγον
Do not curse the king even in your thoughts, or curse the rich even in your bedroom, for a bird of the air may carry your words, and a winged creature may report your speech.