The name of "Beersheba" was confirmed by Isaac when he also established by oath his boundaries there with Abimelech, as Abraham had done. These circumstances both gave occasion to this name. Being the boundary-wall, the engagement was repeated; and both engagements contributed to give it this name But here there is not the smallest ground whatever for supposing that it was inattention to some other document, for it is stated (26:18), "And Isaac digged again the wells of water which they had digged in the days of Abraham his father; for the Philistines had stopped them after the death of Abraham. And he called their names after the names by which his father had called them;" and then it goes on to give an additional personal reason why the last had the same name.