Jacob's arrival in "Mamre Kirjath-Arbah," i.e., in the terebinth-grove of Mamre (Genesis 13:18) by Kirjath-Arbah or Hebron (vid., Genesis 23:2), constituted his entrance into his father's house, to remain there as Isaac's heir. He had probably visited his father during the ten years that had elapsed since his return from Mesopotamia, though no allusion is made to this, since such visits would have no importance, either in themselves or their consequences, in connection with the sacred history. This was not the case, however, with his return to enter upon the family inheritance. With this, therefore, the history of Isaac's life is brought to a close. Isaac died at the age of 180, and was buried by his two sons in the cave of Machpelah (Genesis 49:31), Abraham's family grave, Esau having come from Seir to Hebron to attend the funeral of his father. But Isaac's death did not actually take place for 12 years after Jacob's return to Hebron. For as Joseph was 17 years old when he was sold by his brethren (Genesis 37:2), and Jacob was then living at Hebron (Genesis 37:14), it cannot have been more than 31 years after his flight from Esau when Jacob returned home (cf. Genesis 34:1). Now since, according to our calculation at Genesis 27:1, he was 77 years old when he fled, he must have been 108 when he returned home; and Isaac would only have reached his 168th year, as he was 60 years old when Jacob was born (Genesis 25:26). Consequently Isaac lived to witness the grief of Jacob at the loss of Joseph, and died but a short time before his promotion in Egypt, which occurred 13 years after he was sold (Genesis 41:46), and only 10 years before Jacob's removal with his family to Egypt, as Jacob was 130 years old when he was presented to Pharaoh (Genesis 47:9). But the historical significance of his life was at an end, when Jacob returned home with his twelve sons.

Genesis 36:4 Parallel Commentaries

Adah.

1 Chronicles 1:35 The sons of Esau; Eliphaz, Reuel, and Jeush, and Jaalam, and Korah.

Eliphaz.

Job 2:11 Now when Job's three friends heard of all this evil that was come on him, they came every one from his own place; Eliphaz the Temanite...

Reuel. not.

Exodus 2:18 And when they came to Reuel their father, he said, How is it that you are come so soon to day?

Numbers 10:29 And Moses said to Hobab, the son of Raguel the Midianite, Moses' father in law, We are journeying to the place of which the LORD said...