Numbers 32:31-35

And the children of Gad and the children of Reuben answered, saying, As the LORD hath said unto thy servants, so will we do.

We will pass over armed before the LORD into the land of Canaan, that the possession of our inheritance on this side Jordan may be ours.

And Moses gave unto them, even to the children of Gad, and to the children of Reuben, and unto half the 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, with the cities thereof in the coasts, even the cities of the country round about.

And the children of Gad built Dibon, and Ataroth, and Aroer,

And Atroth, Shophan, and Jaazer, and Jogbehah,