1 Chronicles 5:7-10

7And his brethren by their families, in the genealogical register of their generations, were: the chief, Jeiel, and Zechariah,

8and Bela the son of Azaz, the son of Shema, the son of Joel, who dwelt in Aroer, as far as Nebo and Baal-meon;

9and eastward he dwelt as far as the entrance to the wilderness from the river Euphrates; for their cattle were multiplied in the land of Gilead.

10And in the days of Saul they made war with the Hagarites, who fell by their hand; and they dwelt in their tents throughout the east side of Gilead.