Numbers 32:29-33

29And Moses said to them, “If the people of Gad and the people of Reuben, every man who is armed to battle before the Lord, will pass with you over the Jordan and the land shall be subdued before you, then you shall give them the land of Gilead for a possession. 30However, if they will not pass over with you armed, they shall have possessions among you in the land of Canaan.” 31And the people of Gad and the people of Reuben answered, “What the Lord has said to your servants, we will do. 32We will pass over armed before the Lord into the land of Canaan, and the possession of our inheritance shall remain with us beyond the Jordan.”

33And aMoses gave to them, to the people of Gad and to the people of Reuben and to the half-tribe of Manasseh the son of Joseph, the kingdom of Sihon king of the Amorites and the kingdom of Og king of Bashan, the land and its cities with their territories, the cities of the land throughout the country.
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