John Gills Exposition of the Bible Commentary - Proverbs 15:21
Folly is joy to him that is destitute of wisdom ,.... Or "that wants a heart" F17 לחסר לב "carenti corde", Montanus; "ei qui deficitur", Schultens. , a wise and understanding one; by "folly" is meant sin, for all sin is folly; and that is very pleasing and joyous to a wicked he chooses it and delights in it; instead of being ashamed of it, and sorry for it, he glories in it, and makes his boast of it; and not only takes pleasure in committing it himself, but also in those that... read more
Matthew Henry's Complete Commentary - Proverbs 15:21
Note, 1. It is the character of a wicked man that he takes pleasure in sin; he has an appetite to the bait, and swallows it greedily, and has no dread of the hook, nor feels from it when he has swallowed it: Folly is joy to him; the folly of others is so, and his own much more. He sins, not only without regret, but with delight, not only repents not of it, but makes his boast of it. This is a certain sign of one that is graceless. 2. It is the character of a wise and good man that he makes... read more