Judges 11:13 - Matthew Poole's English Annotations on the Holy Bible

My land, i.e. this land of Gilead, which was mine, but unjustly taken from me, by Sihon and Og, the kings of the Amorites, and the injury perpetuated by Israel's detaining it from me. This land, before the conquests of Sihon and Og, belonged partly to the Ammonites, as is affirmed, Joshua 13:25; and partly and principally to the Moabites, as appears from Numbers 21:24,26 Deu 3:11. And indeed Moab and Ammon did for the most part join their interests and their forces, as appears from Scripture story; and as Balak the king of the Moabites acted for the Ammonites, so now the king of Ammon seems to act for the Moabites; either as being now his subjects, or as his confederates; whence it comes to pass that Moab and Ammon are here promiscuously mentioned, as Judges 11:15,17,18,25; and Chemosh, the known god of the Moabites, Numbers 21:29 1 Kings 11:33 2 Kings 23:13 Jeremiah 48:13,46, is here called the god of the Ammonites, Judges 11:24, though, to speak strictly, Moloch or Milcom was their god, 1 Kings 11:5,7,33 2 Kings 23:13.