Matthew Poole and continuators on Proverbs 16:21

21 The wise in heart shall be called prudent , and the sweetness of the lips increaseth learning .

The sense is either, 1. He who hath Wisdom or sound knowledg in his Heart, will shew it by his prudence in [illegible: 1 word] his Actions. Or rather, 2. He who is truly wise, or prudent, or intelligent (all which words most commonly signify one and the same thing, both in this and in other Books of Scripture) shall be so called or accounted by others.

Eloquence added to Wisdom, the faculty of expressing a Man's mind fitly, and freely, and acceptably.

Both in himself, for whilst a Man teacheth others, he improveth himself; and especially in others, who by this means are induced to hear and receive his good instructions. Wisdom gets a Man repute with others, but this faculty of right speaking, makes a wise Man more instrumental to do good to others.