כָ לָ הַ הִּ יא בְׁ יָ דוּשָ עֵ שֶ עַ ו שנֵ וֹא לְׁ בקֹּ עֲ יַ רש"י לג ד
Har Sinai is called “Sinai” which means “Sin'ah” (Gemara), i.e., as soon as the Torah was given, the Goyim started hating us. The Ohr HaChaim says that since Kalev had a big Yetzer Hara and he overcame it, therefore he is greater than Yehoshua. Notice how Yaakov is always fighting and struggling with a Malach, and with getting the Brachos and the Bechora. This can also symbolize how the power of learning Torah overcomes all kinds of Yetzer Hara’s.
Notice how Yaakov’s Hasmada is extreme; 14 years without sleep, and his hard work is extreme: הָ יִּיתִּ י בַ יוֹם אֲ כָלַ נִּ י חֹ רֶּ ב וְקֶּ רַ ח בַ לָ יְלָ ה וַתִּ דַ ד שְ נָתִּ י מֵ עֵ ינָי לא מ through scorching and freezing weather, and no sleeping. He’s dealing with an Eisav who was born in the same: יָ לְ שִּ ה placenta! And being so close to such a big Yetzer Hara demands the extreme opposite of Eisav, Mr.: אִּ ישלטֵ בָ Do-Nothing.
