They took possession of the land belonging to Sihon and to Og king of Bashan—the two Amorite kings across the Jordan to the east—
Here is, 1. The nomination of the cities of refuge on that side Jordan where Israel now lay encamped. Three cities were appointed for that purpose, one in the lot of Reuben, another in that of Gad, and another in that of the half tribe of Manasseh, Deu 4:41-43.
Commenting on Deuteronomy 4:41-49
From Aroer, which is by the bank of the river Arnon,.... A city of Moab, which was situated on the bank of the river Arnon, that was on the border of Moab, Deu 2:36, even unto Mount Sion, which is Hermon; the meaning is, that the lands of these two kings conquered by Israel reached from the city Aroer on the river Arnon to Mount...
This address, which is described in the heading as the law which Moses set before the Israelites, commences with a repetition of the decalogue, and a notice of the powerful impression which was made, through the proclamation of it by God Himself, upon the people who were assembled round Him at Horeb (Deut 5).
Commenting on Deuteronomy 4:44-49