Numbers 21:31
So Israel lived in the land of the Amorites.
Numbers 32:33-42
And Moses gave to them, to the sons of Gad and to the sons of Reuben, and to the 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, the cities of the land all 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, the border of the sons of Ammon,
Joshua 12:1-6
And these are the kings of the land, whom the sons of Israel struck and whose land they possessed on the other side Jordan toward 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, as Moses the servant of Jehovah gave them,