Let me prove to you that all the ways in which He acts must be without limits. For in Eyn Sof by necessity there can be no change. To act at one time in one way and at another time in a different way would be a change. If so, Eyn Sof, blessed be He, does not act at one time in one way and at another time in a different way.
We are obliged to say that the way in which Eyn Sof acts is the same, and that the very act which comes to us within limits is executed by Him in His way, without limits, while we receive what relates to us. That there can be no difference in the way Eyn Sof acts is obvious, for we cannot in any way ascribe physical occurences to Eyn Sof, and change is certainly a physical occurrence, which therefore cannot exist in Him.
This is quite clear from the words of Rabbi Shimon bar Yochai, who said: “He does not change in any place” (Zohar, Ki Tetze 281a. See also Zohar III, 257b, as discussed in Opening 29).