Joshua 13:9

from Aroer, which is on the edge of the ravine of Arnon, and the city, which is in the midst of the ravine, and all the table-land of Medeba, as far as Dibon;

Numbers 21:30

Then we shot them - Heshbon is destroyed, as far as Dibon, - Then laid we waste as far as Nophah, A fire reacheth unto Medeba.

Joshua 13:16

and their boundary was from Aroer, that is on the edge of the ravine of Arnon and the city which is in the midst of the ravine and all the table-land by Medeba;

Deuteronomy 3:12

And this land, took we in possession at that time, - from Aroer which is by the ravine of Arnon, and half the hill-country of Gilead and the cities thereof, gave I unto the Reubenites and unto the Gadites;

Deuteronomy 3:16

And unto the Reubenites and unto the Gadites, gave I - from Gilead even as far as the ravine of Arnon, the middle of the ravine and boundary, - even as far as the Jabbok ravine, the boundary of the sons

Joshua 12:2

Sihon, king of the Amorites, who dwelt in Heshbon, - ruling from Aroer, which is on the edge of the ravine of Arnon, and the middle of the ravine, and half Gilead, even as far as the ravine Jabbok, the boundary of the sons of Ammon;

Isaiah 15:2

He hath gone up to Bayith and Dibon, to the high places, to weep, - On Nebo and on Medeba, Moab is howling, On all their heads, a baldness, Every beard, clipped.

Jeremiah 48:18

Come down from glory, and sit in thirst, O inhabitress daughter of Dibon; For the spoiler of Moab, hath come up against thee, He hath laid in ruins thy strongholds.

Jeremiah 48:22

and Upon Dibon, and Upon Nebo, and Upon Beth-diblathaim;

Treasury of Scripture Knowledge

Summary

From Aroer, that is upon the bank of the river Arnon, and the city that is in the midst of the river, and all the plain of Medeba unto Dibon;

Bible References

All the plain

Numbers 21:30
Then we shot them - Heshbon is destroyed, as far as Dibon, - Then laid we waste as far as Nophah, A fire reacheth unto Medeba.
Isaiah 15:2
He hath gone up to Bayith and Dibon, to the high places, to weep, - On Nebo and on Medeba, Moab is howling, On all their heads, a baldness, Every beard, clipped.
Jeremiah 48:18
Come down from glory, and sit in thirst, O inhabitress daughter of Dibon; For the spoiler of Moab, hath come up against thee, He hath laid in ruins thy strongholds.

General references

Numbers 21:31
So then Israel dwelt in the land of the Amorites.
Numbers 34:14
For the tribe of the sons of the Reubenites by their ancestral house, and the tribe of the sons of Gad, by their ancestral house, have received, and, the half tribe of Manasseh have received, their inheritance:
Joshua 13:16
and their boundary was from Aroer, that is on the edge of the ravine of Arnon and the city which is in the midst of the ravine and all the table-land by Medeba;
Judges 11:19
Then did Israel send messengers unto Sihon king of the Amorites, king of Heshbon, - and Israel said unto him, Let us pass, we pray thee, through thy land as far as my own place.