John Gills Exposition of the Bible Commentary - Proverbs 17:7
Excellent speech becometh not a fool ,.... A wicked man. Eloquence, or a sublime grand way of speaking, a copiousness and fluency of expression, become not such; because hereby he may be capable of doing more mischief; or such a style is unsuitable to the subject of his discourse, which is nothing but folly and wickedness. The Gospel is excellent speech, sound speech, that cannot be condemned; it treats of excellent things; concerning the person, office, and grace of Christ, and salvation by... read more
Matthew Henry's Complete Commentary - Proverbs 17:7
Two things are here represented as very absurd: 1. That men of no repute should be dictators. What can be more unbecoming than for fools, who are known to have little sense and discretion, to pretend to that which is above them and which they were never cut out for? A fool, in Solomon's proverbs, signifies a wicked man, whom excellent speech does not become, because his conversation gives the lie to his excellent speech. What have those to do to declare God's statutes who hate instruction? Ps.... read more