2. He must threaten the Ammonites with utter ruin for this insolence which they were guilty of. God turns away his wrath from Israel against them, as is said, Prov. xxiv. 17, 18. God is jealous for his people's honour, because his own is so nearly interested in it. And therefore those that touch that shall be made to know that they touch the apple of his eye. He had before predicted the destruction of the Ammonites, ch. xxi. 28. Had they repented, that would have been revoked; but now it is ratified. (1.) A destroying enemy is brought against them: I will deliver thee to the men of the east, first to the Chaldeans, who came from the north-east, and whose army, under the command of Nebuchadnezzar, destroyed the country of the Ammonites, about five years after the destruction of Jerusalem (as Josephus relates, Antiq. 10.181), and then to the Arabians, who were properly the children of the east, who, when the Chaldeans had made the country desolate, and quitted it, came and took possession of it for themselves, probably with the consent of the conquerors. Shepherds' tents were their palaces; these they set up in the country of the Ammonites; there they made their dwellings, v. 4. They enjoyed the products of the country: They shall eat thy fruit and drink thy milk; and the milk from the cattle is the fruit of the ground at second-hand. They made use even of the royal city for their cattle (v. 5): I will make Rabbath, that was a nice and splendid city, to be a stable for camels; for its new masters, whose wealth lies all in cattle, will not think they can put the palaces of Rabbath to a better use. Rabbath had been a habitation of brutish men; justly therefore is it now made a stable for camels and the country a couching-lace for flocks, more innocent beasts than those with which it had been before replenished. (2.) God himself acts as an enemy to them (v. 7): I will stretch out my hand upon thee, a hand that will reach far and strike home, which there is no resisting the blow of, for it is a mighty hand, nor bearing the weight of, for it is a heavy hand. God's hand stretched out against the Ammonites will not only deliver them for a spoil to the heathen, so that all their neighbours shall prey upon them, but will cut them off from the people and made them perish out of the countries, so that there shall be no remains of them in that place. Compare with this, Jer. xlix. 1, &c. What can sound more terrible than that resolution (v. 7), I will destroy thee? For the almighty God is able both to save and to destroy, and it is a fearful thing to fall into his hands. Both the threatenings here (v. 5 and v. 7) conclude with this, You shall know that I am the Lord. For, [1.] Thus God will maintain his own honour, and will make it appear that he is the God of Israel, though he suffers them for a time to be captives in Babylon. [2.] Thus he will bring those that were strangers to him into an acquaintance with him, and it will be a blessed effect of their calamities. Better know God and be poor than be rich and ignorant of him.