We have here the Lord reckoning with other sinful nations. And first with Ammon. This people had been a long enemy to Israel, and upon every occasion did all they could to distress them. 2 Samuel 12:26 etc. Here therefore the Lord begins to reckon with Ammon. And observe on what account it is done, namely, because they rejoiced in the transgression of Israel, and the Lord's displeasure with Israel. Aha Aha! so would we have it; is the language of all carnal men, when gracious souls transgress and all into sin and trouble. Psalms 35:21. See also the whole prophecy of Obadiah.
Ezekiel 25:1-7
1 The word of the LORD came again unto me, saying,
2 Son of man, set thy face against the Ammonites, and prophesy against them;
3 And say unto the Ammonites, Hear the word of the Lord GOD; Thus saith the Lord GOD; Because thou saidst, Aha, against my sanctuary, when it was profaned; and against the land of Israel, when it was desolate; and against the house of Judah, when they went into captivity;
4 Behold, therefore I will deliver thee to the mena of the east for a possession, and they shall set their palaces in thee, and make their dwellings in thee: they shall eat thy fruit, and they shall drink thy milk.
5 And I will make Rabbah a stable for camels, and the Ammonites a couchingplace for flocks: and ye shall know that I am the LORD.
6 For thus saith the Lord GOD; Because thou hast clapped thine hands,b and stamped with the feet, and rejoiced in heart with all thy despite against the land of Israel;
7 Behold, therefore I will stretch out mine hand upon thee, and will deliver thee for a spoilc to the heathen; and I will cut thee off from the people, and I will cause thee to perish out of the countries: I will destroy thee; and thou shalt know that I am the LORD.