The Zohar Ha’Kadosh interprets the “kaf yerech” as “tamchin do’oraisa,” referring to those who support Torah. The Chafetz Chaim explains that Eisav’s angel disputed Yaakov’s claim to the blessings, offering the argument that Eisav had as much right to the blessings as Yaakov did. Yaakov retorted that his descendants would one day receive the Torah to study. Although Eisav’s angel could not impugn this rationale, he nevertheless attempted to hurt Yaakov. He succeeded in weakening the financial support for Torah. In the “Ikvasa d’Meshicha,” the period of time close to the advent of Moshiach, Torah supporters will seek excuses to shirk their responsibility. This was the manner in which the Sar shel Eisav, angel of Eisav, left an eternal blemish on Yaakov’s ability to “move” forward.
The Chafetz Chaim adds that the actions of the Patriarchs serve as a portent for their children. In every generation, those who seek to challenge and undermine Torah, attempt do so in every way possible. When they see that the lomdei Torah, those who study Torah, reinforce themselves by affirming their commitment to Torah study, these detractors – by withholding their material support – attempt to prevent their continued study . They do everything in their power to undermine Torah study — be it disparaging those who study, concocting reasons for channeling funds to other charities, or making impossible demands upon those institutions whose goal it is to teach and disseminate Torah. The demands are not based upon logic. Their goal, however, is apparent – to prevent the study of Torah.
Just as Yaakov triumphed over the angel, even though he limped away, he continued to build a vibrant nation devoted to the observance and study of Torah, so, too, will we continue to overcome the present detractors of Torah.