Numbers 21:15

And the bottom of the ravines, that extendeth toward the dwelling of Ar, - And adjoineth to the boundary of Moab,

Numbers 21:28

For, a fire, hath come forth out of Heshbon, A flame, out of the stronghold of Sihon; It hath consumed Ar of Moab, The lords of the high places of Arnon.

Deuteronomy 2:9

And Yahweh said unto me - Do not lay siege to Moab, nor engage in strife with them in battle, - for I will not give unto thee of his and as a possession, for unto the sons of Lot, have I given Ar, as a possession.

Deuteronomy 2:18

Thou, art passing, to-day, the boundary of Moab even Ar;

Deuteronomy 2:29

as the sons of Esau, who are dwelling in Seir, did to me, and the Moabites who are dwelling in Ar, - until that I pass over the Jordan, into the land which, Yahweh our God, is giving unto us.

Isaiah 15:1

The oracle on Moab: Because, in a night, was laid waste Ar of Moab - destroyed! Because, in a night, was laid waste Kir of Moab - destroyed,

Treasury of Scripture Knowledge

Summary

And at the stream of the brooks that goeth down to the dwelling of Ar, and lieth upon the border of Moab.

General references

Bible References

Ar

Numbers 21:28
For, a fire, hath come forth out of Heshbon, A flame, out of the stronghold of Sihon; It hath consumed Ar of Moab, The lords of the high places of Arnon.
Deuteronomy 2:9
And Yahweh said unto me - Do not lay siege to Moab, nor engage in strife with them in battle, - for I will not give unto thee of his and as a possession, for unto the sons of Lot, have I given Ar, as a possession.
Isaiah 15:1
The oracle on Moab: Because, in a night, was laid waste Ar of Moab - destroyed! Because, in a night, was laid waste Kir of Moab - destroyed,

General references

Deuteronomy 2:18
Thou, art passing, to-day, the boundary of Moab even Ar;