Deuteronomy 3:12

“At that time we took possession of this land. I gave to the Reubenites and Gadites the area extending from Aroer by the Arnon Valley, and half the hill country of Gilead along with its cities.

Deuteronomy 2:36

There was no city that was inaccessible to us, from Aroer on the rim of the Arnon Valley, along with the city in the valley, even as far as Gilead. The Lord our God gave everything to us.

Numbers 32:32-38

We will cross over in battle formation before the Lord into the land of Canaan, but we will keep our hereditary possession across the Jordan.”

Deuteronomy 4:48

from Aroer on the rim of the Arnon Valley as far as Mount Sion (that is, Hermon)

Joshua 12:2-6

Sihon king of the Amorites lived in Heshbon. He ruled over the territory from Aroer on the rim of the Arnon Valley, along the middle of the valley, and half of Gilead up to the Jabbok River (the border of the Ammonites),

Joshua 13:8-28

With the other half of the tribe, the Reubenites and Gadites had received the inheritance Moses gave them beyond the Jordan to the east, just as Moses the Lord’s servant had given them:

2 Kings 10:33

from the Jordan eastward, all the land of Gilead—the Gadites, the Reubenites, and the Manassites—from Aroer which is by the Arnon Valley through Gilead to Bashan.

Treasury of Scripture Knowledge

Summary

And this land, which we possessed at that time, from Aroer, which is by the river Arnon, and half mount Gilead, and the cities thereof, gave I unto the Reubenites and to the Gadites.

Bible References

From aroer

Deuteronomy 2:36
There was no city that was inaccessible to us, from Aroer on the rim of the Arnon Valley, along with the city in the valley, even as far as Gilead. The Lord our God gave everything to us.
Deuteronomy 4:48
from Aroer on the rim of the Arnon Valley as far as Mount Sion (that is, Hermon)
Numbers 32:33
So Moses gave them—the Gadites, Reubenites, and half the tribe of Manasseh son of Joseph—the kingdom of Sihon king of the Amorites and the kingdom of Og king of Bashan, the land including its cities with the territories surrounding them.
Joshua 12:2
Sihon king of the Amorites lived in Heshbon. He ruled over the territory from Aroer on the rim of the Arnon Valley, along the middle of the valley, and half of Gilead up to the Jabbok River (the border of the Ammonites),
Joshua 13:8
With the other half of the tribe, the Reubenites and Gadites had received the inheritance Moses gave them beyond the Jordan to the east, just as Moses the Lord’s servant had given them:
2 Kings 10:33
from the Jordan eastward, all the land of Gilead—the Gadites, the Reubenites, and the Manassites—from Aroer which is by the Arnon Valley through Gilead to Bashan.

General references

Numbers 34:14
For the tribe of the Reubenites and the tribe of the Gadites have received their inheritance according to their ancestral houses, and half the tribe of Manasseh has received its inheritance.
Deuteronomy 29:8
We took their land and gave it as an inheritance to the Reubenites, the Gadites, and half the tribe of Manasseh.
Joshua 13:16
this as their territory:

From Aroer on the rim of the Arnon Valley, along with the city in the middle of the valley, to the whole plateau as far as Medeba,
Psalm 136:21
and gave their land as an inheritance,
        His love is eternal.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.