Ye shall fell every good tree - This is not an infringement of the rule laid down in Deuteronomy 20:19-20. The Israelites were not forbidden to fell the fruit trees in an enemy's country, as a part of the ravage of war, when they had no thoughts of occupying the country. The plan of thus injuring an enemy was probably in general use among the nations of these parts at the time. We see the destruction represented frequently on the Assyrian monuments and mentioned in the inscriptions of Egypt.

And stop all wells of water - The stoppage of wells was a common feature of ancient, and especially Oriental, warfare (compare Genesis 26:15-18).

Mar ... with stones - The exact converse of that suggested in Isaiah 5:2. The land in and about Palestine is so stony that the first work of the cultivator is to collect the surface stones together into heaps. An army marching through a land could easily undo this work, dispersing the stones thus gathered, and spreading them once more over the fields.

Shall fell every good tree - Every tree by which your enemies may serve themselves for fortifications, etc. But surely fruit trees are not intended here; for this was positively against the law of God, Deuteronomy 20:19, Deuteronomy 20:20 : "When thou shalt besiege a city - thou shalt not destroy the trees thereof - for the tree of the field is man's life - only the trees which thou knowest that they be not trees for meat, thou shalt destroy and cut them down."

Stop all wells of water - In those hot countries this would lead sooner than any thing else to reduce an enemy.

Mar every good piece of land with stones - Such a multitude of men, each throwing a stone on a good field as they passed, would completely destroy it.

And ye shall smite every fenced city and every choice city,.... That is, the inhabitants of them with the sword, and demolish them also, 2 Kings 3:25, and shall fell every good tree; which seems contrary to the law in Deuteronomy 20:19, but that may respect trees belonging to a city when besieged only, or only to Canaanitish cities; or the law was now dispensed with, and that for this time only, to make the punishment of Moab the greater, for their rebellion and other sins:

and stop all wells of water; which must be very distressing to those that survived the calamity of the sword:

and mar every good piece of land with stones; as that it could not be ploughed and sowed, nor anything spring up and grow upon it.

And ye shall smite every fenced city, and every choice city, and shall fell every good tree, and stop all wells of water, and {n} mar every good piece of land with stones.

(n) Though God bestows his benefits for a time on the enemies, yet he has his seasons, when he will take them away to the intent they might see his vengeance which is prepared for them.

3:19 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.

mar: Heb. grieve

3:6-19 The king of Israel laments their distress, and the danger they were in. He called these kings together, yet he charges it upon Providence. Thus the foolishness of man perverteth his way, and then his heart fretteth against the Lord, Pr 19:3. It was well that Jehoshaphat inquired of the Lord now, but it had been much better if he had done it before he engaged in this war. Good men sometimes neglect their duty, till necessity and affliction drive them to it. Wicked people often fare the better for the friendship and society of the godly. To try their faith and obedience, Elisha bids them make the valley full of pits to receive water. Those who expect God's blessings, must dig pools for the rain to fill, as in the valley of Baca, and thus make even that a well, Ps 84:6. We need not inquire whence the water came. God is not tied to second causes. They that sincerely seek for the dew of God's grace, shall have it, and by it be made more than conquerors.