Gravity caused the big bang, their was no time or space prior to this. God did not create the universe and the "Big Bang" was an inevitable consequence of the laws of physics. Thanks for asking and Hope this helps!
God CREATED the laws of Physics and all things in fact. I doubt there was even a Big Bang because there are many problems with that theory (yes, it's only a theory unlike what this lying sack of shit E-Kul would have you gullibly believe); God might have used the Big Bang if there was one to expand the universe but that's it. And as I said (please take note this time) time is not a physical concept like space so it exists apart from the Big Bang.
The big bang as it is understood today is an inadequate theory. There are many fundamental problems that are seldom mentioned in popular literature. Some of the “missing links” in the theory are:
Missing Origin: The big bang theory assumes an original concentration of energy. Where did this energy come from? Astronomers sometimes speak of an origin from a “quantum mechanical fluctuation within a vacuum.” However, in the big bang theory, no vacuum existed before the explosion. Actually there is no consistent secular origin theory, since every idea is based on preexisting matter or energy.
Missing Fuse: What ignited the big bang? The mass concentration proposed in this theory would remain forever bound as a universal black hole. Gravity would prevent it from ever expanding outward.
Missing Star Formation: No natural way has been found to explain the formation of planets, stars, and galaxies. An explosion should produce, at best, an outward spray of gas and radiation. This gas should continue expanding, not form intricate planets, stars, and entire galaxies.
Missing Antimatter: Some versions of the big bang theory require the equal production of matter and antimatter. However, only small traces of antimatter-positrons and antiprotons, for example-are found in space.
Missing Time: Some experiments indicate that the universe may be young, on the order of 10,000 years old. If true, then there is not sufficient time for the consequences of the big bang theory to unfold. A short time span will not allow for the gradual evolution of the stars or life on Earth.
Missing Mass: Many scientists assume that the universe will eventually stop expanding and begin to collapse inward. Then it will again explode and repeat its oscillating type of perpetual motion. This idea is an effort to avoid an origin and destiny for the universe. For oscillation to occur, however, the universe must have a certain density or distribution of mass. So far, measurements of the mass density are 100 times smaller than expected. In fact there are indications that the universe is accelerating outward instead of slowing down. The universe does not appear to be oscillating. The necessary mass or “dark matter” is “missing.”
Missing Life: In an evolving universe, life should have developed everywhere. Space should be filled with radio signals from intelligent life forms. Where is everybody?
Missing Neutrinos: These small particles should flood the earth from the sun’s fusion process. The small number detected raises questions about the sun’s energy source and man’s overall understanding of the universe. How then can science speak about “origins” with any authority?