וְיִֽתֶּן־לְךָ֙ אֶת־בִּרְכַּ֣ת אַבְרָהָ֔ם לְךָ֖ וּלְזַרְעֲךָ֣ אִתָּ֑ךְ לְרִשְׁתְּךָ֙ אֶת־אֶ֣רֶץ מְגֻרֶ֔יךָ אֲשֶׁר־נָתַ֥ן אֱלֹהִ֖ים לְאַבְרָהָֽם׃
願祂將亞伯拉罕所蒙的福賜給你，賜給你和你的後裔，使你承受你所寄居的這地為業，就是上帝賜給亞伯拉罕的地。
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.