Joshua 13:9

from Aroer, which [is] on the edge of the wadi of Arnon, and the city which [is] in the middle of the wadi, and all the plateau [from] Medeba up to Dibon;

Numbers 21:30

We destroyed them; Heshbon has perished up to Dibon; we laid waste up to Nophah, which {reaches} Medeba."

Joshua 13:16

Their territory was from Aroer, which [was] on the edge of the wadi of Arnon, and the city that [is] in the middle of the valley, and all the plateau by Medeba;

Deuteronomy 3:12

And [so] we took possession of this land at that time, from Aroer, which [is] on the [edge of the] wadi of Arnon, and [also] half of the hill country of Gilead and its towns I gave to the Reubenites and to the Gadites.

Deuteronomy 3:16

And to the Reubenites and to the Gadites I gave, from Gilead up to the wadi of Arnon, the middle of the wadi [as a] boundary and up to the Jabbok {River}, the boundary of the {Ammonites}.

Joshua 12:2

Sihon king of the Amorites, who lived in Heshbon, and ruled from Aroer, which [is] on the edge of the wadi of Arnon, [from] the middle of the valley and half of Gilead, up to the {Jabbok River}, [which marks] the border of the {Ammonites};

Isaiah 15:2

It has gone up [to] the house, and Dibon [to] the high places for weeping over Nebo, and Moab wails over Medeba. {Every head is bald}, every beard [is] shaved.

Jeremiah 48:18

Come down from glory and sit on the parched ground, O inhabitant, daughter of Dibon, for the destroyer of Moab has come up against you, he has destroyed your fortifications.

Jeremiah 48:22

and on Dibon, and on Nebo, and on 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 destroyed them; Heshbon has perished up to Dibon; we laid waste up to Nophah, which {reaches} Medeba."
Isaiah 15:2
It has gone up [to] the house, and Dibon [to] the high places for weeping over Nebo, and Moab wails over Medeba. {Every head is bald}, every beard [is] shaved.
Jeremiah 48:18
Come down from glory and sit on the parched ground, O inhabitant, daughter of Dibon, for the destroyer of Moab has come up against you, he has destroyed your fortifications.

General references

Numbers 21:31
Thus Israel lived in the land of the Amorites.
Numbers 34:14
For the tribe of the children of the Reubenites, the children of the Gadites, and the half-tribe of Manasseh took their inheritance according to the house of their families.
Joshua 13:16
Their territory was from Aroer, which [was] on the edge of the wadi of Arnon, and the city that [is] in the middle of the valley, and all the plateau by Medeba;
Judges 11:19
Israel sent messengers to Sihon king of the Amorites, king of Heshbon; and Israel said to him, 'Please let us cross through your land {to our country}.'