Editing Sefiras HaGevurah (section)

== The Middah of Yitzchak ==
The avodah in the aspect of Gevurah is the middah of Yitzchak Avinu. The three Avos are in the aspect of merkavah to the Sefiros of Chesed-Gevurah-Tiferes of the world of Atzilus, and Yitzchak, who was the second of the Avos, was a merkavah to the Sefira of Gevurah. The matter is that he served his Creator with pachad and yirah, and this was the path in which he served all his days, and this is what is meant by "pachad Yitzchak."

It is explained that specifically the middah of Yitzchak, the middah of Gevurah, is what will be revealed in the future to come. As it is written (Isaiah 63:16): "For You are our father, for Abraham does not know us and Israel does not recognize us," and on this the Gemara (Shabbos 89b) states that Yitzchak is not mentioned because Yitzchak will redeem us in the future. And the matter is explained that even Abraham and Yaakov are in the aspect of created beings, and there is an advantage in the aspect of Yitzchak which is Gevuros, and this is the matter of the advantage of gold over silver.