Parallel
Proverbs 16:23
Rahlfs Septuagint (1935) · Berean Standard Bible
καρδία σοφοῦ νοήσει τὰ ἀπὸ τοῦ ἰδίου στόματος ἐπὶ δὲ χείλεσιν φορέσει ἐπιγνωμοσύνην
The heart of the wise man instructs his mouth and adds persuasiveness to his lips.