וַיֹּ֗אמֶר הַגִּ֤שָׁה לִּי֙ וְאֹֽכְלָה֙ מִצֵּ֣יד בְּנִ֔י לְמַ֥עַן תְּבָֽרֶכְךָ֖ נַפְשִׁ֑י וַיַּגֶּשׁ־לוֹ֙ וַיֹּאכַ֔ל וַיָּ֧בֵא ל֦וֹ יַ֖יִן וַיֵּֽשְׁתְּ׃
Y dijo: Acércamela, y comeré de la caza de mi hijo, para que te bendiga mi alma; y él se la acercó, y comió: trájole también vino, y bebió.
Chizkuni
ויבא לו יין וישת, “he brought his father wine and Yitzchok drank it.” Wine was apt to confuse a person’s mind at times, so that he would not proceed further with worrying if this was indeed Esau or an impostor.
Da'at Zekenim
ויבא לו יין וישת, “he brought him (his father) wine and he drank.” Where did Yaakov suddenly get the wine from? We have not heard a word about his mother having given him wine to take along. Our sages assume that the angel Michael brought that wine from the celestial regions. This occasion, and the one when Malki Tzedek brought wine to Avraham when the latter had miraculously defeated the greatest army of its time, (Genesis 14,18) are the only two instances in the Torah when wine is described as a source of blessing. In both instances the people drinking the wine pronounced a blessing.
Radak
ויאמר...ואכלה מציד בני, as if he had said: “from your venison.” However, he used a formulation which was customary at the time.