Komentarz do Rodzaju 13:15

כי את כל הארץ, For the entire land, etc. We are all familiar with the limitations of our eyesight. We can see for a certain distance, no more. We are also familiar with the so-called קפיצת הדרך, telescoping a distance of earth under one into a very small distance such as was experienced by Eliezer on his way to Charan, and Jacob on his way to Charan. In this instance G'd brought the various borders of the land of Israel closer to Abraham so that he could see them all with his normal eyesight. Abraham took possession of the land symbolically because all of it was within his view. Normally speaking, there is no more absolute sign of possession than to move a rock from its location. Here G'd moved the entire land from its location to bring it within the sight of Abraham's eyes.

כי את כל הארץ, even though Avram could not see the whole of the land of Canaan from where he stood, G’d told him to look in all the four directions of the globe to tell him that just as the land extended beyond his range of physical vision in every direction, so G’d would give to his descendants all of this as an inheritance, after at this time already having given it to Avram as a gift. The fact that at the moment this land was under the sovereignty of the Canaanites was legally irrelevant. He, Avram, would transfer title to his descendants as his heirs. [an inheritance cannot be revoked, whereas a gift can be revoked by the donor. Ed.]

כי את כל הארץ אשר אתה רואה, “for the whole land that you can see;” [Lot had also decided on the basis of what he could see. (13,10) Ed.] G-d emphasised that Lot should never have any claim to any part of the Holy Land.

עד עולם, they would expel the nations living here from this land. Even though, eventually, the Israelites themselves would be exiled from their land, in the end they would return there on a permanent enduring basis.