Genesis 23:17-20

17And the field of Ephron, which was in Machpelah, which was before Mamre, the field, and the cave which was in it, and all the trees that were in the field, that were in all the surrounding borders, were made sure 18To Abraham for a possession in the presence of the children of Heth, before all that entered the gate of his city. 19And after this, Abraham buried Sarah his wife in the cave of the field of Machpelah before Mamre: the same is Hebron in the land of Canaan. 20And the field, and the cave that is in it, were made sure to Abraham for a possession of a buryingplace by the sons of Heth.