Parallel
Proverbs 16:23
Swete's Septuagint · 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.