First off, I'm to assume that when you say "God" you mean the Judeo-Christian God.
This is already a faulty position because there are 1000s of gods that have existed throughout history, all of which (even the Judeo-Christian one) have been absolutely wrong about everything cosmology and evolution. What told us the earth is flat? Religion. What told us the earth was the center of the universe and the sun revolved around it? Religion. What makes us apologize for being alive (in Christianity, we are "born in sin")? Religion.
I've actually been reading up on this stuff lately, so I've learned a lot in the last couple of months.
Anyway, you can't say "God", you must just say a "prime mover". It's a deist vs theist type of thinking. A deist is someone who believes that something out there began the universe, then left us be. A theist is someone who says that not only something out there created the universe, but that something cares about US (out of all the things in the universe, why us and only us?), cares about what you eat, cares about who you sleep with and how, cares about what you do on certain days, etc.
So when you say "God", there's no foundation to it. It's pretty much impossible to move from the deist position to the theist position with any solid proof. And even still, it's hard to validate the deist position except for "well, I have no other explanation".
But not knowing how something happens doesn't equate to "Goddunit". The God of the Gaps arguments is horrendously flawed. At least with scientific explanation, we have some groundwork to how the universe began. The GOD answer is merely "I don't know how, so I'm going to chalk it up to something we can't possibly prove".
You can't possibly believe that modern scientific theory is "rediscovering" anything. Religion didn't know about relativity. Religion didn't know about germs. Religion didn't know about evolution. Religion didn't know about ANYTHING scientific, whether a physical science or a social science. Going from the Big 2 (Christianity and Islam), the same holy books that says that the earth is six to ten thousand years old and is the center of the universe is the same book that condones the rape of women.
Just look into the Hubble Telescope and tell me that #1 all of that was created for US and #2 you really see any sort of order (other than gravity keeping stuff together) <---creation believers tend to believe that the universe was "fine tuned" for our existence even though 99.9999999% is inhabitable and like 80% of our own planet earth is inhabitable
