1 Chronicles 12:37
From the other side of the Jordan, from Reuben, Gad, and the half tribe of Manasseh, there were 120,000 men armed with all kinds of weapons.
Numbers 32:33-42
So Moses gave to the Gadites, the Reubenites, and to half the tribe of Manasseh son of Joseph the realm of King Sihon of the Amorites, and the realm of King Og of Bashan, the entire land with its cities and the territory surrounding them.
Deuteronomy 3:12-16
This is the land we brought under our control at that time: The territory extending from Aroer by the Wadi Arnon and half the Gilead hill country with its cities I gave to the Reubenites and Gadites.
Joshua 13:7-32
Now, divide up this land among the nine tribes and the half-tribe of Manasseh."
Joshua 14:3
Now Moses had assigned land to the two-and-a-half tribes east of the Jordan, but he assigned no land to the Levites.
Joshua 22:1-10
Then Joshua summoned the Reubenites, Gadites, and the half-tribe of Manasseh
1 Chronicles 5:1-10
The sons of Reuben, Israel's firstborn -- (Now he was the firstborn, but when he defiled his father's bed, his rights as firstborn were given to the sons of Joseph, Israel's son. So Reuben is not listed as firstborn in the genealogical records.