Deuteronomy 3:16

3:16 To the Reubenites and Gadites I allocated the territory extending from Gilead as far as Wadi Arnon (the exact middle of the wadi was a boundary) all the way to the Wadi Jabbok, the Ammonite border.

Deuteronomy 3:18

Instructions to the Transjordanian Tribes

3:18 At that time I instructed you as follows: “The Lord your God has given you this land for your possession. You warriors are to cross over before your fellow Israelites ¹  equipped for battle.

[3:18]  ¹ tn Heb “your brothers, the sons of Israel.”