C. F. Keil and Franz Delitzsch on 1 Samuel 15:6-7

1Sa 15:6-7

Saul directed the Kenites to come out from among the Amalekites, that they might not perish with them (אספך, imp. Kal of אסף), as they had shown affection to the Israelites on their journey out of Egypt (compare Num 10:29 with Jdg 1:16). He then smote the Amalekites from Havilah in the direction towards Shur, which lay before (to the east of) Egypt (cf. Gen 25:18). Shur is the desert of Jifar, i.e., that portion of the desert of Arabia which borders upon Egypt (see at Gen 16:7). Havilah, the country of the Chaulotaeans, on the border of Arabia Petraea towards Yemen (see at Gen 10:29).