TSK
Treasury of Scripture Knowledge references in NET.
From Aroer, which is at the edge of Wadi Arnon(it is the city in the wadi), all the way to Gilead there was not a town able to resist us– the LORD our God gave them all to us.
Distribution of the Transjordanian Allotments This is the land we brought under our control at that time: The territory extending from Aroer by the Wadi Arnon and half the Gilead hill country with its cities I gave to the Reubenites and Gadites.
Then Israel went through the wilderness and bypassed the land of Edom and the land of Moab. They traveled east of the land of Moab and camped on the other side of the Arnon River; they did not go through Moabite territory(the Arnon was Moab’s border).
Like a frightened gazelle or a sheep with no shepherd, each will turn toward home, each will run to his homeland.