Numbers 32:33 mentions that the kingdom of Sihon and Og was given to Reuben, Gad, and the half-tribe of Manasseh. Deuteronomy 3:12 and Deuteronomy 3:16–17 give some imprecise details of the territory given to Reuben. Joshua now gives more specific details: Reuben specifically receives all of Sihon’s realm.
15 And Moses gave an inheritance to the tribe of the people of Reuben according to their clans.