Parallel
Proverbs 20:2
Swete's Septuagint · Berean Standard Bible
οὐ διαφέρει ἀπειλὴ βασλέως θυμοῦ λέοντος, ὁ δὲ παροξύνων αὐτὸν ἁμαρτάνει εἰς τὴν ἑαυτοῦ ψυχήν.
The terror of a king is like the roar of a lion; whoever provokes him forfeits his own life (note: Literally sins against his own soul).