Creation stories are universal among religions, through the ages. The ineffable mystery of life compelled us to explain our existence. In our primitive ignorance of the world, religion was the best we could do to provide the explanations we craved.
Thanks to science, we’re learning more about the universe and illuminating the dark corners of what was once our ignorance.
The word, "create", means: to bring into existence. Thus, if God created the universe, it had a beginning and can not be infinite in both directions of time: forward, yes; backward, no. But why can’t the universe simply be? Why can’t the universe be infinite in both directions of time: forward and backward? Why must it have a beginning? Why must it have been created by a supernatural God?
The first law of thermodynamics – the conservation of energy – makes it clear that nothing is ever created. Matter might change form but it never simply appears or disappears. For instance, we are nourished and grow by eating plants and other animals. Food is transformed into the energy that sustains us and the cells we are made of; including our DNA. Our parents didn’t create us, they transformed us.
Physics' mathematical models break down in a singularity. It is not known whether or not the first law holds in a singularity. If it does, the first law of thermodynamics strips bare the core question of creation and existence. Either the universe always existed . . . or . . . the universe was created by something outside the laws of physics (i.e. something supernatural). Either the universe is truly eternal or God created it. It boils down to physics or the supernatural.
We've had plenty of confirmation of Einstein's famous equation: E=MC2. Energy and mass are equivalent. Before the Big Bang, the entire mass of the universe was contained (as energy) in a super singularity. Whether or not ours is the first and only Big Bang, Big Bangs come from singularities. I believe that, in one form or another (singularity or cosmos), the universe simply is and always was. Not only is there no need for creation or for God: the conservation of energy means there could never have been a time when the universe, in whatever form, did not exist. Something doesn't come from nothing without supernatural intervention.
Because nobody has ever seen anything physically created, the pervasive concept of creation must be a human response to the unfathomable immensity of the eternal. The universe has always existed? What do you mean? Everything comes from somewhere, doesn't it? Yes. But nothing comes from nowhere.
The first law reduces the source of existence to either the natural or the supernatural. The notion of a personal God is ridiculous to me. But a cosmic God? I can imagine an eternal energy – infinitely hot, infinitely massive – that created the universe in a single, spectacular, explosion that still permeates the entire universe. If you want to call that energy -- that potential of our universe -- God, I can't refute you.