2 Samuel 24:5

And they went over Jordan, and starting from Aroer, from the town which is in the middle of the valley, they went in the direction of the Gadites, and on to Jazer;

Deuteronomy 2:36

From Aroer on the edge of the valley of the Arnon and from the town in the valley as far as Gilead, no town was strong enough to keep us out; the Lord our God gave them all into our hands:

Joshua 13:9

From Aroer, on the edge of the valley of the Arnon, and the town in the middle of the valley, and all the table-land from Medeba to Dibon;

Joshua 13:16

Their limit was from Aroer, on the edge of the valley of the Arnon, and the town in the middle of the valley, and all the table-land by Medeba;

Numbers 21:32

And Moses sent men secretly to Jazer, and they took its towns, driving out the Amorites who were living there.

Numbers 32:1

Now the children of Reuben and the children of Gad had a great number of cattle: and when they saw that the land of Jazer and the land of Gilead was a good place for cattle;

Numbers 32:3

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

Numbers 32:35

And Atroth-shophan and Jazer and Jogbehah;

1 Samuel 30:28

And to those in Arara and Eshtemoa

Isaiah 16:8-9

For the fields of Heshbon are waste, the vine of Sibmah is dead; the lords of nations were overcome by the produce of her vines; her vine-plants went as far as Jazer, and came even to the waste land; her branches were stretched out to the sea.

Isaiah 17:2

Her towns are unpeopled for ever; there the flocks take their rest in peace, without fear.

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 children of Reuben and the children of Gad had a great number of cattle: and when they saw that the land of Jazer and the land of Gilead was a good place for cattle;
Isaiah 16:8
For the fields of Heshbon are waste, the vine of Sibmah is dead; the lords of nations were overcome by the produce of her vines; her vine-plants went as far as Jazer, and came even to the waste land; her branches were stretched out to the sea.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain