John Trapp on Proverbs 21:15

Verſ. 15. It is joy to the juſt to do judgment] They love it dearly; and therefore cannot but rejoyce in it exceedingly. I rejoyce at thy word, as one that findeth great ſpoyl, Pſal. 119.162. wherein the pleaſure is uſually as much as the profit. Beſides, as every flower hath its ſweet ſavour: ſo every good duty carries meat in the mouth, comfort in the performance. Hence the Saints alacrity in Gods ſervice, ſo far as they are ſpiritual. I delight in the Law of God, Rom. 7. after the inward man, ſaith Saint Paul, who yet but a little before complained of a clog.

But deſtruction ſhall bee to the workers of iniquity] Wicked men are great workmen; they put themſelves to no ſmall pains in catering for the fleſh to fulfil the luſts thereof, yea and this they do with ſingular delight (as the oppoſition implies) they weary themſelves to commit iniquity, Jer. 9.5. and yet they give not over, but lye grinding day and night in the Mill of ſome or other baſe luſt. Now what can come of this better than utter deſtruction: which indeed is the juſt hire of the leaſt ſin, and will befall the workers of iniquity, as ſure as the coat is on their back, or the heart in their body?