Jacob’s arrival at Mamre started the official return to his father’s house, where he took up his place as Isaac’s inheritor. Mamre was in the immediate neighborhood of Hebron, formerly Kirjath-arba (Genesis 13:18; 23:2). Isaac lived 23 years after Jacob’s exodus from Haran.
Jacob was 120 at the death of his father Isaac (Genesis 25:26). Ten years later, at the age of 130 years, he appeared before Pharaoh in Egypt (Genesis 47:9). At that time Joseph had been second in command over the land of Egypt for nine years (Genesis 45:11).
Jacob was therefore 121 years old when Joseph was raised to his glorious position at the age of 30 (Genesis 41:46), and 108 when Joseph was sold into slavery when he was but a young man of 17 years of age (Genesis 37:2).
Thus, Isaac was 168 years of age when Joseph was sold into Egyptian slavery. Since this horrible account took place while Jacob was living at Hebron with Isaac his father (Genesis 37:14), Isaac was an eye witness to the sorrow of Jacob over the loss of Joseph and continued for a period of 12 years.
Isaac’s departure seemingly took place toward the close of Joseph’s three years in prison. At Isaac’s death Esau and Jacob‘s tense relationship had been fully healed for about 23 years. Abraham, Isaac, and Jacob, died at the ages of 175, 180, and 147 years.
In His service,