John Gills Exposition of the Bible Commentary - Proverbs 17:27
He that hath knowledge spareth his words ,.... Or, "he that knows knowledge" F3 יודע דעת "qui scit scientiam", Pagninus, Vatablus, Mercerus. ; one that is very knowing, has a fund of knowledge in him, "spareth his words"; is generally a man of few words, he thinks much and says little; and though he may be communicative of his knowledge to proper persons, and at proper times, yet never speaks of it in a boasting and ostentatious way: or, he "restrains his words" F4 חושך ... read more
Matthew Henry's Complete Commentary - Proverbs 17:27
Two ways a man may show himself to be a wise man:?1. By the good temper, the sweetness and the sedateness, of his mind: A man of understanding is of an excellent spirit, a precious spirit (so the word is); he is one that looks well to his spirit, that it be as it should be, and so keeps it in an even frame, easy to himself and pleasant to others. A gracious spirit is a precious spirit, and renders a man amiable and more excellent than his neighbour. He is of a cool spirit (so some read it),... read more