‘And Jacob came to Isaac his father, to Mamre, to Kiriath-arba (the same is Hebron) where Abraham and Isaac sojourned.
At last Jacob is home. He has come to take up his now rightful place as heir to the family tribe and the covenant promises. He is now in the line of Abraham and Isaac.
For Mamre see 13:18; 14:13; 18:1. Kiriatharba means ‘city of four', possibly of four parts. It was as an annotator tells us the later city of Hebron. Compare for its use Joshua 14:15; Joshua 15:54; Joshua 20:7; Judges 1:10.