After they had routed the division of the army assigned to them on the south, they hastened to the aid of their brothers, who were defending the east, north, and west of the citadel with three companies. On each side the wind blew into the faces of the enemy, and so the sons of Jacob succeeded in annihilating their army. Four hundred were slain in battle, and six hundred fled, among the latter Esau's four sons, Reuel, Jeush, Lotan, and Korah. The oldest of his sons, Eliphaz, took no part in the war, because he was a disciple of Jacob, and therefore would not bear arms against him.
Eliphaz's Legacy
Legends of the Jews 6:276