Something to think about Hubble the scientist you know the guy who the telescope was named after His theory that the universe is expanding well he explained it to Einstien using the analogy of a balloon. If the universe is expanding like a ballon that recieves air. What happens when you bring everything back in time to its original time and space which would be nothing. Therefore a question must be asked. How can you fit energy or an electron into nothing?
Are you sayng it would be difficult for God to create everything from nothing? As I understand it, Big Bang theory does not start at the beginning of the Bang but at an extremely small time interval (Plank time) afterward at which time the universe existed entirely of energy. As it expanded and cooled some of that energy condensed into matter, including electrons.
By the way Eienstien changed his view that the universe was eternal.