Ye shall smite — And if this command seem severe, it must be considered, that the Moabites were a very wicked people, perfidious, cruel, implacable enemies to God's people upon all occasions, and now in a state of rebellion.
Related Commentaries of 2 Kings 3:19
2 Kings 3:19
19 And ye shall smite every fenced city, and every choice city, and shall fell every good tree, and stop all wells of water, and marb every good piece of land with stones.