What is the meaning of "ha'Cheker Eloka Timtza"?
Rashi: You think that you fulfilled everything.
Devar Eliyahu: Cheker is Ma'ase Bereishis - "Oseh Gedolos Ad Ein Cheker", "veli'Gdulaso Ein Cheker", "Borei Ketzos ha'Aretz Ein Cheker li'Gdulaso."
Malbim: One cannot understand Elokus. The basis of man's knowledge is from what he senses. Our senses cannot perceive Him, so there is nothing on which our intellect can build to understand Him. Also refer to 11:7:2:2.
What do we learn from "Ad Tachlis Shakai Timtza"?
Devar Eliyahu: Tachlis is His conduct with the creations - there is no limit to their number. "Ad Tachlis Shakai Timtza" - He has no end or limit.
Malbim: A second reason why one cannot understand Elokus is because man's intellect is limited, and Hashem is unlimited.
Why did Tzufar prove that man cannot understand Elokim?
Malbim: Above, Iyov proved that there is no choice. If he had, Hashem's knowledge would change after He sees what one chose! A Tzadik can perish, for his virtue was forced; it is not a merit. Tzufar rejects this. We cannot understand Hashem's knowledge, just like we cannot understand ourselves! His knowledge is totally unlike ours. He can know what choices will be made in the future, but man had choice.
