Why was Yitzchak the only one who could speak on behalf of Klal Yisroel?
Eliezer Friedman, RBS, Israel
The Iyun Tefilah explains that each of the Avos displayed the same Midah in the World to Come that they displayed in this world. Avraham, he says, banished Yishmael from the house, whereas Ya'akov cursed Shimon and Levi's anger. Consequently, in Olam ha'Ba, they continued the trend of zero tolerance towards sinners.
Yitzchak on the other hand, displayed kindness toward Eisav, despite the fact that he was a sinner; so he did the same towards his grandchildren, the sons of Ya'akov.
Wishing you a good Chodesh and a good Chanukah.
Be'Virchas Kol Tuv