Numbers 21:32
And Moses sent to spy out Jaazer, and they took the villages thereof, and drove out the Amorites that were there.
Nave's Topical Index—AKJV

Numbers 32:1,3,35
Now the children of Reuben and the children of Gad had a very great multitude of cattle: and when they saw the land of Jazer, and the land of Gilead, that, behold, the place was a place for cattle;
Nave's Topical Index—AKJV

Joshua 13:25
And their coast was Jazer, and all the cities of Gilead, and half the land of the children of Ammon, to Aroer that is before Rabbah;
Nave's Topical Index—AKJV

Joshua 21:39
Heshbon with her suburbs, Jazer with her suburbs; four cities in all.
Nave's Topical Index—AKJV