Joshua 13:9

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

Numbers 21:30

We have shot at them; Heshbon is perished even unto Dibon, and we have laid them waste even unto Nophah, which reaches unto Medeba.

Joshua 13:16

And their territory was from Aroer, that is on the bank of the river Arnon, and the city that is in the midst of the valley, and all the plain by Medeba;

Deuteronomy 3:12

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

Deuteronomy 3:16

And unto the Reubenites and unto the Gadites I gave from Gilead even unto the river Arnon half the valley, and the border even unto the river Jabbok, which is the border of the children of Ammon;

Joshua 12:2

Sihon king of the Amorites, who dwelled in Heshbon, and ruled from Aroer, which is on the bank of the river Arnon, from the middle of the river, and from half of Gilead, even unto the river Jabbok, which is the border of the children of Ammon;

Isaiah 15:2

He has gone up to the temple, and to Dibon, the high places, to weep: Moab shall wail over Nebo, and over Medeba: on all their heads shall be baldness, and every beard cut off.

Jeremiah 48:18

You daughter that does inhabit Dibon, come down from your glory, and sit in thirst; for the plunderer of Moab shall come upon you, and he shall destroy your 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
We have shot at them; Heshbon is perished even unto Dibon, and we have laid them waste even unto Nophah, which reaches unto Medeba.
Isaiah 15:2
He has gone up to the temple, and to Dibon, the high places, to weep: Moab shall wail over Nebo, and over Medeba: on all their heads shall be baldness, and every beard cut off.
Jeremiah 48:18
You daughter that does inhabit Dibon, come down from your glory, and sit in thirst; for the plunderer of Moab shall come upon you, and he shall destroy your strongholds.

General references

Numbers 21:31
Thus Israel dwelt in the land of the Amorites.
Numbers 34:14
For the tribe of the children of Reuben according to the house of their fathers, and the tribe of the children of Gad according to the house of their fathers, have received their inheritance; and the half tribe of Manasseh has received its inheritance:
Joshua 13:16
And their territory was from Aroer, that is on the bank of the river Arnon, and the city that is in the midst of the valley, and all the plain by Medeba;
Judges 11:19
And Israel sent messengers unto Sihon king of the Amorites, the king of Heshbon; and Israel said unto him, Let us pass, we pray you, through your land into my place.