Thus says Yahweh: "For three transgressions of the children of Ammon, yes, for four, I will not turn away its punishment; Because they have ripped open the pregnant women of Gilead, That they may enlarge their border.
The whole of what became the inheritance of the 2 12 tribes, was in the hands of the Amorites, and threatened very nearly their remaining possessions; since, at “Aroer that is before Rabbah” Joshua 13:25, the Amorites were already over against the capital of Ammon; at the Arnon they were but 2 12 hours from Ar-Moab, the remaining capital of Moab. Israel then, in destroying the Amorites, had been at once avenging and rescuing Moab and Ammon; and it is so far a token of friendliness at this time, that, after the victory at Edrei, the great “iron bedstead” of Og was placed in “Rabbah of the children of Ammon” Deuteronomy 3:11. Envy, jealousy, and fear, united them to “hire Balaam to curse Israel” Deuteronomy 23:4, although the king of Moab was the chief actor in this Num. 22–24, as he was in the seduction of Israel to idoltary Numbers 25:1-3. Probably Moab was then, and continued to be, the more influential or the more powerful, since in their first invasion of Israel, the Ammonites came as the allies of Eglon king of Moab. “He gathered unto him the children of Ammon and Amalek Judges 3:13. And” they “served Eglon.” Yet Ammon’s subsequent oppression must have been yet more grievous, since God reminds Israel of His delivering them from the Ammonites Judges 10:11, not from Moab. There we find Ammon under a king, and in league with the Philistines Judges 10:7, “crashing and crushing for 18 years all the children of Israel in Gilead.” The Ammonites carried a wide invasion across the Jordan against Judah, Benjamin and Ephraim Judges 10:9, until they were subdued by Jephthah. Moab is not named; but the king of Ammon claims as my land Judges 11:13, the whole which Moab and Ammon had lost to the Amorites and they to Israel, “from Arnon unto Jabbok and unto Jordan” Judges 11:13.