12 So at that time we took possession of this land. To the Reubenites and Gadites I gave the land beyond Aroer along the Arnon Valley, and half the hill country of Gilead, along with its cities.
Deuteronomy 3:12 Cross References - MSB
Numbers 32:32-38
32 We will cross over into the land of Canaan armed before the LORD, that we may have our inheritance on this side of the Jordan.”
33 So Moses gave to the Gadites, to the Reubenites, and to the half-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 and the territory surrounding them.
34 And the Gadites built up Dibon, Ataroth, Aroer,
35 Atroth-shophan, Jazer, Jogbehah,
36 Beth-nimrah, and Beth-haran as fortified cities, and they built folds for their flocks.
37 The Reubenites built up Heshbon, Elealeh, Kiriathaim,
38 as well as Nebo and Baal-meon (whose names were changed), and Sibmah. And they renamed the cities they rebuilt.
Deuteronomy 2:36
36 From Aroer on the rim of the Arnon Valley, along with the city in the valley, even as far as Gilead, not one city had walls too high for us. The LORD our God gave us all of them.
Deuteronomy 4:48
48 extending from Aroer on the rim of the Arnon Valley as far as Mount Siyon (that is, Hermon),
Joshua 12:2-6
2 Sihon king of the Amorites, who lived in Heshbon. He ruled from Aroer on the rim of the Arnon Valley, along the middle of the valley, up to the Jabbok River (the border of the Ammonites), that is, half of Gilead,
3 as well as the Arabah east of the Sea of Chinnereth to the Sea of the Arabah (the Salt Sea), eastward through Beth-jeshimoth, and southward below the slopes of Pisgah.
4 And Og king of Bashan, one of the remnant of the Rephaim, who lived in Ashtaroth and Edrei.
5 He ruled over Mount Hermon, Salecah, all of Bashan up to the border of the Geshurites and Maacathites, and half of Gilead to the border of Sihon king of Heshbon.
6 Moses, the servant of the LORD, and the Israelites had struck them down and given their land as an inheritance to the Reubenites, the Gadites, and the half-tribe of Manasseh.
Joshua 13:8-28
8 The other half of Manasseh, along with the Reubenites and Gadites, had received the inheritance Moses had given them beyond the Jordan to the east, just as Moses the servant of the LORD had assigned to them:
9 The area from Aroer on the rim of the Arnon Valley, along with the city in the middle of the valley, the whole plateau of Medeba as far as Dibon,
10 and all the cities of Sihon king of the Amorites who reigned in Heshbon, as far as the border of the Ammonites;
11 also Gilead and the territory of the Geshurites and Maacathites, all of Mount Hermon, and all Bashan as far as Salecah—
12 the whole kingdom of Og in Bashan, who had reigned in Ashtaroth and Edrei and had remained as a remnant of the Rephaim. Moses had struck them down and dispossessed them,
13 but the Israelites did not drive out the Geshurites or the Maacathites. So Geshur and Maacath dwell among the Israelites to this day.
14 To the tribe of Levi, however, Moses had given no inheritance. The offerings made by fire to the LORD, the God of Israel, are their inheritance, just as He had promised them.
15 This is what Moses had given to the clans of the tribe of Reuben:
16 The territory from Aroer on the rim of the Arnon Valley, along with the city in the middle of the valley, to the whole plateau beyond Medeba,
17 to Heshbon and all its cities on the plateau, including Dibon, Bamoth-baal, Beth-baal-meon,
18 Jahaz, Kedemoth, Mephaath,
19 Kiriathaim, Sibmah, Zereth-shahar on the hill in the valley,
20 Beth-peor, the slopes of Pisgah, and Beth-jeshimoth—
21 all the cities of the plateau and all the kingdom of Sihon king of the Amorites, who reigned in Heshbon until Moses killed him and the chiefs of Midian (Evi, Rekem, Zur, Hur, and Reba), the princes of Sihon who lived in the land.
22 The Israelites also killed the diviner Balaam son of Beor along with the others they put to the sword.
23 And the border of the Reubenites was the bank of the Jordan. This was the inheritance of the clans of the Reubenites, including the cities and villages.
24 This is what Moses had given to the clans of the tribe of Gad:
25 The territory of Jazer, all the cities of Gilead, and half the land of the Ammonites as far as Aroer, near Rabbah;
26 the territory from Heshbon to Ramath-mizpeh and Betonim, and from Mahanaim to the border of Debir;
27 and in the valley, Beth-haram, Beth-nimrah, Succoth, and Zaphon, with the rest of the kingdom of Sihon king of Heshbon (the territory on the east side of the Jordan up to the edge of the Sea of Chinnereth).
28 This was the inheritance of the clans of the Gadites, including the cities and villages.
2 Kings 10:33
33 from the Jordan eastward through all the land of Gilead (the region of Gad, Reuben, and Manasseh), and from Aroer by the Arnon Valley through Gilead to Bashan.