וְיִֽתֶּן־לְךָ֙ אֶת־בִּרְכַּ֣ת אַבְרָהָ֔ם לְךָ֖ וּלְזַרְעֲךָ֣ אִתָּ֑ךְ לְרִשְׁתְּךָ֙ אֶת־אֶ֣רֶץ מְגֻרֶ֔יךָ אֲשֶׁר־נָתַ֥ן אֱלֹהִ֖ים לְאַבְרָהָֽם׃
и дай тебе благословение Авраама тебе и потомству твоему с тобою; чтобы ты мог наследовать землю твоего пребывания, которую Бог дал Аврааму.'
Rashi
את ברכת אברהם THE BLESSING OF ABRAHAM, (i. e. the blessing which He gave to (Abraham) to whom He promised, (12:2) “and I will make of thee a great nation”, and (26:4) “and all the nations shall bless themselves by thy seed”: may these blessings have been said regarding you — may that great nation and that blessed seed issue from you.
Rashbam
לרשתך את הארץ, seeing that you cannot take a wife from the daughters of the Canaanites as Avraham had commanded Yitzchok because they are slaves, (cursed.)
Radak
וא-ל שדי...ויתן לך את ברכת אברהם, which G’d pronounced concerning you and your descendants, for just as I was a special seed to my father, though he had other children beside me, you are my special seed and will be the bearer of this promise/prophecy.