Numbers 21:13

From thence, brake they up, and encamped on the other side of Arnon which is in the desert, that cometh forth out of the boundary of the Amorites, - for, Arnon, is the boundary of Moab, between Moab and the Amorites.

Numbers 22:36

And Balak heard that Balaam, was coming, - so he went forth to meet him unto a city of Moab which was upon the boundary of Arnon, which was in the utmost part of the boundary.

Judges 11:18

Then journeyed they through the desert, and went round the land of Edom, and the land of Moab, and so came, from the rising of the sun, to the land of Moab, but encamped beyond Arnon, - and entered not within the boundary of Moab, for, Arnon, is the boundary of Moab.

Numbers 21:14

For this cause is it said, in the Book of the Wars of Yahweh, - -- Waheb with a hurricane, And the ravines of Arnon;

Deuteronomy 2:24

Arise ye, set forward and cross over the ravine of Arnon, see! I have given into thy hand - Sihon king of Heshbon, the Amorite and his land, begin - take possession, - and engage in strife with him in battle.

Isaiah 16:2

Yet shall it be that - Like wandering birds from a nest cast forth, Shall be the daughters of Moab, at the fords of Amen.

Jeremiah 48:20

Confounded is Moab! For it is broken down! Howl and make outcry, - Tell ye in Arnon, That Moab is spoiled;

Treasury of Scripture Knowledge

Summary

From thence they removed, and pitched on the other side of Arnon, which is in the wilderness that cometh out of the coasts of the Amorites: for Arnon is the border of Moab, between Moab and the Amorites.

Bible References

General references

Numbers 21:14
For this cause is it said, in the Book of the Wars of Yahweh, - -- Waheb with a hurricane, And the ravines of Arnon;
Numbers 22:36
And Balak heard that Balaam, was coming, - so he went forth to meet him unto a city of Moab which was upon the boundary of Arnon, which was in the utmost part of the boundary.
Deuteronomy 2:24
Arise ye, set forward and cross over the ravine of Arnon, see! I have given into thy hand - Sihon king of Heshbon, the Amorite and his land, begin - take possession, - and engage in strife with him in battle.
Judges 11:18
Then journeyed they through the desert, and went round the land of Edom, and the land of Moab, and so came, from the rising of the sun, to the land of Moab, but encamped beyond Arnon, - and entered not within the boundary of Moab, for, Arnon, is the boundary of Moab.
Isaiah 16:2
Yet shall it be that - Like wandering birds from a nest cast forth, Shall be the daughters of Moab, at the fords of Amen.
Jeremiah 48:20
Confounded is Moab! For it is broken down! Howl and make outcry, - Tell ye in Arnon, That Moab is spoiled;