פּירוש אויף בראשית 27:7

'לפני ה BEFORE THE LORD — By his permission: that He should approve of what I do.

ואברככה לפני ה, “I shall give you the blessing that is approved by the Lord.” [Seeing that after Avraham’s death the Lord had conferred his power to bless on his son Yitzchok. (Compare 25,11). Ed.] Yitzchok explained that this was why he encouraged Esau now to perform deeds to be worthy of such blessings. The author refers to his commentary on Genesis 10,9, in connection with the expression: 'גבור ציד לפני ה.

AND I WILL BLESS THEE BEFORE THE ETERNAL BEFORE MY DEATH. In this entire section, the expression, before the Eternal, is not mentioned except in this place. This is because his mother said to Jacob, “The blessing will be before the Eternal with the Ruach Hakodesh,²⁰⁵See above, Note 90. and if Esau your brother be blessed with it, it will remain with his children forever, and you will have no standing before him.”