How could that be if God ALWAYS was, is and will be. He has no beginning or end.
I am sorry for the need to say this but that is a thoughtless question. YWH created everything we see, touch, feel, and reach for to our benefit. As unfathomably huge as our Time/Space Continuum appears to us, our Elohim is larger and there is no escape from Him anywhere.
Just how large is YHWH? Flip me over and call me Done... I do not know and I might never know or care. He created everything there is and that makes Him so powerful that I, a died in the wool Pro-military nut, do bow down to humble myself before Him in worship and to offer my service to Him without limit.
There are a number of things that deny all answers. YHWH is the force, God if one chooses, that is constant throughout all time recorded or otherwise. The argument by the idiots claiming The Big Bang holds the answer are more thoughtless that the plastic bottle Soda Waters are sold in.
Empirical Science demands this is untrue, a lie! Nothing in the Scientific Method hints at this being true. No, it is not true and yet something, unknown to our natural senses, started this mess, and the answer is Our Elohim, Him that speaks to the heart of men when they seek to find Him.
I have heard so many answer this thought with so many thoughtless answers that at my age, it's tiring. But the truth is that when I humbled myself, the first time, He let me know He was there with me. It really is that simple.