1 Chronicles 12:37

On the other side of the Jordan, of the Reubenites, and the Gadites, and of the half-tribe of Manasseh, with all kinds of instruments of war for the battle, one hundred twenty thousand.

Numbers 32:33-42

Moses gave to them, even to the children of Gad, and to the children 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, according to its cities and borders, even the cities of the surrounding land.

Deuteronomy 3:12-16

This land we took in possession at that time: from Aroer, which is by the valley of the Arnon, and half the hill country of Gilead, and its cities, gave I to the Reubenites and to the Gadites:

Joshua 13:7-32

Now therefore divide this land for an inheritance to the nine tribes and the half-tribe of Manasseh."

Joshua 14:3

For Moses had given the inheritance of the two tribes and the half-tribe beyond the Jordan; but to the Levites he gave no inheritance among them.

Joshua 22:1-10

Then Joshua called the Reubenites, the Gadites, and the half-tribe of Manasseh,

1 Chronicles 5:1-10

The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.

Treasury of Scripture Knowledge

Summary

And on the other side of Jordan, of the Reubenites, and the Gadites, and of the half tribe of Manasseh, with all manner of instruments of war for the battle, an hundred and twenty thousand.

Bible References

The other side

1 Chronicles 5:1
The sons of Reuben the firstborn of Israel (for he was the firstborn; but, because he defiled his father's couch, his birthright was given to the sons of Joseph the son of Israel; and the genealogy is not to be reckoned after the birthright.
Numbers 32:33
Moses gave to them, even to the children of Gad, and to the children 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, according to its cities and borders, even the cities of the surrounding land.
Deuteronomy 3:12
This land we took in possession at that time: from Aroer, which is by the valley of the Arnon, and half the hill country of Gilead, and its cities, gave I to the Reubenites and to the Gadites:
Joshua 13:7
Now therefore divide this land for an inheritance to the nine tribes and the half-tribe of Manasseh."
Joshua 14:3
For Moses had given the inheritance of the two tribes and the half-tribe beyond the Jordan; but to the Levites he gave no inheritance among them.
Joshua 22:1
Then Joshua called the Reubenites, the Gadites, and the half-tribe of Manasseh,