Numbers 21:31
Thus Israel dwelt in the land of the Amorites.
Numbers 32:33-42
And Moses gave to them, even to the children of Gad, and to the children of Reuben, and to 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 its cities in the borders, even the cities of the country around.
Deuteronomy 3:16-17
And to the Reubenites and to the Gadites I gave from Gilead even to the river Arnon half the valley, and the border even to the river Jabbok, which is the border of the children of Ammon:
Joshua 12:1-6
Now these are the kings of the land, whom the children of Israel smote, and possessed their land on the other side of Jordan towards the rising of the sun, from the river Arnon, to mount Hermon, and all the plain on the east:
Joshua 13:8-12
With whom the Reubenites and the Gadites have received their inheritance, which Moses gave them, beyond Jordan eastward, even as Moses the servant of the LORD gave them.