The T'nach (Jewish bible) makes it clear that G-d does not change -- yet everything within creation changes -- constantly.  Even the cells in a human body are forever dying and being created.  Throughout a life, whether human, vegetable or animal the life is constantly changing.   The seasons change.  The day changes to night.  The tides come in and go out.  Even rocks change, water eroding them. . .

Ergo it is clear that G-d is not "in" creation.   As I already quoted from Halacha 11 (same source):

He (G-d is not found within time, so that He would possess a beginning, an end, or age. He does not change, for there is nothing that can cause Him to change.

סופי

And everything that Sarah tells you, listen to her voice. Bereshit (Genesis) 21:12