2 Samuel 24:5

They crossed the Jordan and camped in Aroer, on the right side of the city that is in the middle of the valley of Gad and toward Jazer.

Deuteronomy 2:36

From Aroer which is on the edge of the valley of Arnon and from the city which is in the valley, even to Gilead, there was no city that was too high for us; the Lord our God delivered all over to us.

Joshua 13:9

from Aroer, which is on the edge of the valley of the Arnon, with the city which is in the middle of the valley, and all the plain of Medeba, as far as Dibon;

Joshua 13:16

Their territory was from Aroer, which is on the edge of the valley of the Arnon, with the city which is in the middle of the valley and all the plain by Medeba;

Numbers 21:32

Moses sent to spy out Jazer, and they captured its villages and dispossessed the Amorites who were there.

Numbers 32:1

Now the sons of Reuben and the sons of Gad had an exceedingly large number of livestock. So when they saw the land of Jazer and the land of Gilead, that it was indeed a place suitable for livestock,

Numbers 32:3

Ataroth, Dibon, Jazer, Nimrah, Heshbon, Elealeh, Sebam, Nebo and Beon,

Numbers 32:35

and Atroth-shophan and Jazer and Jogbehah,

1 Samuel 30:28

and to those who were in Aroer, and to those who were in Siphmoth, and to those who were in Eshtemoa,

Isaiah 16:8-9

For the fields of Heshbon have withered, the vines of Sibmah as well;
The lords of the nations have trampled down its choice clusters
Which reached as far as Jazer and wandered to the deserts;
Its tendrils spread themselves out and passed over the sea.

Isaiah 17:2

“The cities of Aroer are forsaken;
They will be for flocks to lie down in,
And there will be no one to frighten them.

Treasury of Scripture Knowledge

Summary

And they passed over Jordan, and pitched in Aroer, on the right side of the city that lieth in the midst of the river of Gad, and toward Jazer:

Bible References

Jazer

Numbers 32:1
Now the sons of Reuben and the sons of Gad had an exceedingly large number of livestock. So when they saw the land of Jazer and the land of Gilead, that it was indeed a place suitable for livestock,
Isaiah 16:8
For the fields of Heshbon have withered, the vines of Sibmah as well;
The lords of the nations have trampled down its choice clusters
Which reached as far as Jazer and wandered to the deserts;
Its tendrils spread themselves out and passed over the sea.