What does Genesis 13:18 mean?
In the previous verses, the Lord reaffirmed and expanded on His promises to Abram to give him and his descendants the land and to make of his descendants a great nation. Finally, the Lord told Abram to walk the length and width of the land. This process suggests measuring the territory, which in ancient times was often used as a symbolic gesture of ownership.Abram then moves south of Bethel near the town of Hebron. He settles there by the oaks or great trees belonging to Mamre, an Amorite man who will be revealed as an ally of Abram in chapter 14.
Abram built an altar to the Lord, Yahweh, in this place. He would continue his worship of God there. This area will become important to Israel, as Abram and the other patriarchs (Isaac and Jacob) will all be buried east of Mamre in the cave of Machpelah (Genesis 23:17-19).