Numbers 32:21–33

²¹and all those of you who bear arms cross the Jordan before the Lord, until he has driven out his enemies from before him ²²and the land is subdued before the Lord—then after that you may return and be free of obligation to the Lord and to Israel, and this land shall be your possession before the Lord.^{* 23}But if you do not do this, you have sinned against the Lord, and be sure your sin will find you out. ²⁴Build towns for your little ones and folds for your flocks, but do what you have promised.”^*

²⁵Then the Gadites and the Reubenites said to Moses, “Your servants will do as my lord commands. ²⁶Our little ones, our wives, our flocks, and all our livestock shall remain there in the towns of Gilead,^{* 27}but your servants will cross over, everyone armed for war, to do battle for the Lord, just as my lord orders.”^*

²⁸So Moses gave command concerning them to Eleazar the priest, to Joshua son of Nun, and to the heads of the ancestral houses of the Israelite tribes.^{* 29}And Moses said to them, “If the Gadites and the Reubenites, everyone armed for battle before the Lord, will cross over the Jordan with you and the land shall be subdued before you, then you shall give them the land of Gilead for a possession,^{* 30}but if they will not cross over with you armed, they shall have possessions among you in the land of Canaan.” ³¹The Gadites and the Reubenites answered, saying, “As the Lord has spoken to your servants, so we will do. ³²We will cross over armed before the Lord into the land of Canaan, but the possession of our inheritance shall remain with us on this side of^u the Jordan.”

³³Moses gave to them—to the Gadites and to the Reubenites and to the half-tribe of Manasseh son of Joseph—the kingdom of King Sihon of the Amorites and the kingdom of King Og of Bashan, the land and its towns, with the territories of the surrounding towns.^*