Commentaire de citation sur La Genèse 15:18

כאשר דבר, “as He had spoken.” A reference to a previous prophecy in Genesis 15,18, when G-d had concluded His first covenant with Avraham.

and the truth of the Lord is eternal For He kept His promise that He promised the Patriarchs.

נשבע לאבתיך WHICH HE SWORE UNTO THY FATHERS — In the case of Abraham it says, (Genesis 15:18) “On that day the Lord made a covenant with Abram [saying, To thy seed I will give this land]”; in the case of Isaac it says, (Genesis 26:3) “Sojourn in this land … [for to thee and to thy seed I will give all these countries]”; and in the case of Jacob it says, (Genesis 28:13) “the land wheron thou liest [to thee will I give it and to thy seed]” (Mekhilta).

עד הנהר הגדל TO THE GREAT RIVER [THE RIVER EUPHRATES] — Because it is mentioned in connection with the Land of Israel, it terms it "great". A popular proverb says: A king’s servant is a king, attach yourself to a captain and people will bow down to you; go near to an anointed (a distinguished) person and you become anointed (distinguished) yourself (cf. Rashi on Shevuot 47b and Genesis 15:18).

ויבתר אתם AND HE SPLIT THEM — He divided each into two portions. This verse does not lose its literal meaning although there are various Midrashic explanations of it. Since He was making a covenant with him to keep His promise to give the land as an inheritance to his children — as it is written (Genesis 15:18), “In that day the Lord made a covenant with Abram, saying …” — and as it was the custom for parties to a covenant to divide an animal and to pass between its parts, as it is said elsewhere (Jeremiah 34:19) “who passed between the parts of the calf”, so also here the smoking furnace and the flaming torch which passed between the pieces (Genesis 15:17) were representative of the Divine Shechinah which is spoken of as fire.

Saying, “To you I shall give, etc.” That is the covenant that He made for them.