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Proverbs 16:23 meaning

Wise hearts shape wise speech, making words more thoughtful, fitting, and effective.

Proverbs 16:23 connects heart and speech: The heart of the wise instructs his mouth and adds persuasiveness to his lips (v. 23). Wise speech does not begin at the lips; it begins in the inner person.

The heart of the wise instructs his mouth because wisdom governs expression from within. The mouth is not left to impulse. The wise heart trains it, directing what is fitting, truthful, and timely.

That inner order adds persuasiveness. Speech becomes effective when it is shaped by genuine understanding. This is not rhetoric detached from truth, but truth made compelling by a wise and formed interior life.