Hi BobRyan, keep searching.
God is never "subservient" to anything, including His creation, but He can choose to limit Himself, otherwise He would not be all powerful, i.e. unable to limit Himself. As I said before, God can overcome whatever barrier the mind of man can put in His way.
So God is free to limit Himself, or not, free to do as He pleases whether that constitutes limiting Himself or not.
By being God, by his divine nature and self existent attributes, he already was/is 'limited" as there are literally some decision and choices he cannot cause himself to make!