Jetur was one of Ishmael's twelve sons and a grandson of Abraham. He became the ancestor of the Jeturites, a people who lived east of the Jordan. The Jeturites are later mentioned in connection with wars against the eastern tribes of Israel.
The tribes of Reuben, Gad, and half the tribe of Manasseh waged war against the Jeturites, Naphish, and Nodab, and defeated them because they trusted in God.
18The Reubenites, the Gadites, and the half-tribe of Manasseh had valiant men who carried shield and sword and drew the bow, trained for battle: forty-four thousand seven hundred sixty ready for military service.
20They were given help against them, and the Hagrites and all their allies were handed over to them, for they cried out to God in the battle, and he answered their plea because they trusted in him.
21They carried off the livestock of the Hagrites: fifty thousand camels, two hundred fifty thousand sheep, two thousand donkeys, and a hundred thousand captives.
Ishmael's Twelve Princes as Fulfillment of the Promise
God had promised Abraham that Ishmael would become the father of twelve princes and a great nation. Jetur was one of these twelve princes, fulfilling this promise.
20As for Ishmael, I have heard you. I will surely bless him; I will make him fruitful and multiply him greatly. He will father twelve princes, and I will make him into a great nation.