Where today is Hebron (20 miles south-southeast of Jerusalem), the first capital of king David’s rule, had been a Canaanite stronghold called Kiryat Arba, which means city of the four, or city of Arba the giant, and if meaning the city of the four, it’s for the four famous giants (among them Arba) who lived there. Buried nearby in Macphelah Cave were three famous Hebrew couples: Abraham and Sarah, Ishmael and Rebecca, plus Jacob and Leah, who had sojourned in the area when the Canaanites had been dominant, during the Ice Age which followed Noah’s Flood.
