What is the meaning of Amos 1:13?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

This is what the LORD says: “For three transgressions of the Ammonites, even four, I will not revoke My judgment, because they ripped open the pregnant women of Gilead in order to enlarge their territory.

Berean Standard Bible (BSB)

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.

World English Bible (WEB)

Thus saith{H559}{(H8804)} the LORD{H3068}; For three{H7969} transgressions{H6588} of the children{H1121} of Ammon{H5983}, and for four{H702}, I will not turn away{H7725}{(H8686)} the punishment thereof; because they have ripped up{H1234}{(H8800)} the women with child{H2030} of Gilead{H1568}, that they might enlarge{H7337}{(H8687)} their border{H1366}:

Strong's King James

Here is what יהוה Yahweh says,"For the sons of ‘Amon’s three crimes, and for four, I will not turn it back, For they split open the pregnant women of Gil‘ad, To enlarge their borders.

The F.O.G*

The F.O.G Paraphrase

Thus said Jehovah: For three transgressions of the sons of Ammon, And for four, I do not reverse it, Because of their ripping up the pregnant ones of Gilead, To enlarge their border,

Young's Literal Translation