22 Though you grind a fool in a mortar, grinding them like grain with a pestle, you will not remove their folly from them.

Matthew Henry's Commentary on Proverbs 27:22

Commentary on Proverbs 27:22

(Read Proverbs 27:22)

Some are so bad, that even severe methods do not answer the end; what remains but that they should be rejected? The new-creating power of God's grace alone is able to make a change.