You're taking the term "mind of God" much too literal. 'Mind of God' is a metaphor used quite often by Einstein, others to describe the inner workings of the Universe, laws of physics.
Einstein use of the word "God" in many of his quotes doesn't necessarily mean he believed in God. One of Einstein's oft-repeated quotes is "that there is no science without God, no God without Science", "God does not play dice with the Universe", others.
Religious views of Albert Einstein
From Wikipedia, the free encyclopedia
Albert Einstein's religious views have been studied due to his sometimes apparently ambiguous statements and writings on the subject. He believed in the god of Baruch Spinoza, but not in a personal god, a belief he criticized. He also called himself an agnostic, and criticized atheism, preferring he said "an attitude of humility."
Albert Einstein Quotes on Spirituality
Einstein did not believe in God.
we’ll have to agree to disagree about einstein (for one thing, he was a documented and devout practitioner of judaism as a youth) and by many accounts he was at least a theist in later life but perhaps one who didn’t have or believe in a “personal” relationship with God.
my “extensive” reading of einstein (including many of his scientific papers) makes me confident that you are mistaken. but i’ll give you one citation out of many possible you could consult just to balance your interpretation of his quotes and assure you that many people and scholars have good evidence that einstein indeed believed in the literal mind of God.