וַיֹּ֡אמֶר הֲכִי֩ קָרָ֨א שְׁמ֜וֹ יַעֲקֹ֗ב וַֽיַּעְקְבֵ֙נִי֙ זֶ֣ה פַעֲמַ֔יִם אֶת־בְּכֹרָתִ֣י לָקָ֔ח וְהִנֵּ֥ה עַתָּ֖ה לָקַ֣ח בִּרְכָתִ֑י וַיֹּאמַ֕ר הֲלֹא־אָצַ֥לְתָּ לִּ֖י בְּרָכָֽה׃
האָט ער געזאָגט: צי דען רופֿט מען זײַן נאָמען יעקב, װײַל ער האָט מיר שױן צװײ מאָל אױסגענאַרט? מײַן בכוֹרה האָט ער צוגענומען, און אָט האָט ער אַצונד צוגענומען מײַן ברכה. און ער האָט געזאָגט: האָסטו ניט באַהאַלטן פֿאַר מיר אַ ברכה?
Rashi
הכי קרא שמו IS IT BECAUSE HE HAS BEEN CALLED [JACOB]—This is a question, like (29:15) “Is it because (הכי) thou art my brother?” Perhaps that is why they have given him the name Jacob — in reference to what was to happen in the future — that he would some time or other supplant me (יעקבני)? (Tanchuma). Why did Isaac tremble? He thought: Perhaps I have sinned in blessing the younger before the elder, thus changing the order of relationship between them. But when Esau began to cry out, “for he hath supplanted me these two times”, his father asked him, “What did he do to you?” He replied, “He took away my birth-right”. Isaac thereupon said, “It was on account of this that I was grieved and trembled: perhaps I had overstepped the line of strict justice. Now, however, I have really blessed the first-born — ‘And he shall indeed be blessed’”.
Rashbam
?הכי קרא שמו יעקב, the line is a rhetorical question. Esau says: “although Yaakov had been named thus because at birth he had held on to my heel so that I became the firstborn and entitled to a double inheritance and he was without such distinction, is he now going to turn the tables on me and get the share of the firstborn, i.e. both blessings?” The word הכי as a question also occurs in connection with Lavan and Yaakov when the latter works for his uncle. When the question of wages came up, Lavan exclaimed הכי אחי אתה ועבדתני חינם, “would there be any justice in your working for me without wages merely because you are my brother (and one does not have to pay one’s family)?” (29,15) Lavan implied: “on the contrary, you should be paid more generously because you are my family.” We have learned in Baba Batra 139 that when someone dies leaving behind many children (sons) and the estate is substantial, the sons share the inheritance whereas the daughters receive a stipend from the estate pending their getting married. When the estate the father left behind is meager, the daughters get the stipend whereas the sons will have to fend for themselves even if it involves begging. Admon says וכי בשביל שאני זכר ויפה כח בנכסים מרובים הורע כוחי בנכסים מועטין? “Am I supposed to suffer because I am male, able-bodied and my parents were wealthy?” [his argument was accepted by Rabban Gamliel, as was every other argument quoted in the name of Admon in the Talmud. Ed.]
Radak
ויאמר, when Esau heard that his brother had used subterfuge to obtain the blessing by making his hands appear as if they were hairy, he said: הכי קרא שמו יעקב, “he was called the crooked one for good reason!” The letter ה at the beginning of the word הכי serves as confirmation of something, as if to say: “truly!” We find it used in a similar sense in Kings I 21,19 הרצחת וגם ירשת!, “ You not only murdered but meant to inherit!” Or, Numbers 20,10: המן הסלע הזה! “from this very rock!” Esau said that Yaakov had truly deserved the name they had given him at birth. Actually, the word יעקב has two connotations; one is connected to deviousness, deceit, as in Jeremiah 17,10 עקוב הלב , “the heart is full of deceit;” or, also from Jeremiah 9,3 כי כל אח עקוב יעקב, “every brother takes advantage.” On the other hand, the word also is derived from עקב, heel, not a negative connotation at all, but possibly a positive one, suggesting humility, modesty, the opposite of pushiness. Yaakov combined both qualities.
Or HaChaim
צוטריטלעך נאָר פֿאַר פּרעמיום־מיטגלידערSiftei Chakhamim
צוטריטלעך נאָר פֿאַר פּרעמיום־מיטגלידערRashi
ויעקבני THAT HE HATH SUPPLANTED ME — Explain it as the Targum renders it, וחכמני, which means “and he lay in wait for me.” The word (Deuteronomy 19:11) וארב “and he lies in wait” is rendered by the Targum וכמי. There are some who read in the Targum not וכמני but וחכמני which means “he showed himself clever against me” (outwitted me).