Matthew Henry, on Prov 16:21

“The wise in heart shall be called prudent: and he that is sweet in words shall attain to greater things.”

“Note, 1. Those that have solid wisdom will have the credit of it; it will gain them reputation, and they shall be called prudent grave men, and a deference will be paid to their judgment. Do that which is wise and good and thou shalt have the praise of the same. 2. Those that with their wisdom have a happy elocution, that deliver their sentiments easily and with a good grace, are communicative of their wisdom and have words at will, and good language as well as good sense, increase learning; they diffuse and propagate knowledge to others, and do good work with it, and by that means increase their own stock. They add doctrine, improve sciences, and do service to the commonwealth of learning. To him that has, and uses what he has, more shall be given.”

Imported from an open dataset — not yet checked against the printed edition.