"Why would your God create the universe in such a way that that makes us think that it was not created by him ? " Shows you know little of cosmology, the theory's about the creation of the universe and especially the accepted model of the Big Bang. This was a major point in changing me from an atheist to a Christian. I don't know who "us" is in your statement, but the BB fits very well in the description of creation in Genesis.
Big Bang cosmology fits in very well with Genesis?
The Christian creation story got only one thing right: There was a beginning to the universe. Genesis anticipated exactly nothing else from the Big Bang theory. It missed the singularity, the expansion of the universe, the inflationary epoch, symmetry breaking, particle condensation, nucleosynthsis, the decoupling of matter and radiation with the release of the the cosmic background radiation, and the hundreds of millions of years before the first starlight.
Genesis also missed the 9 billion year delay before the formation of the sun and earth, the moon-creating impact event, the cooling of the earth with crust formation, and the evolution of life over deep time.
Genesis has this in common with every other creation myth: It got just one thing right - a beginning for the universe.
The Vikings also got that right and nothing else, as did the Australian aborigines got that right and the ancient Mesopotamians:
"The mighty Marduk took his club and split Tiamat's body in half. He placed half of her body in the sky and made the heavens. He created the moon to guard the heavens, and set it moving back and forth, on endless patrol. With the other half of Tiamat's body he made the land."
http://mesopotamia.mrdonn.org/marduk.html
See that? They got exactly one thing right, just like Genesis. The universe had a beginning. Everything else is wrong.
If your purpose was to imply that Genesis anticipated science, and in so doing, indicates that it's author had knowledge about the origin of the universe not yet possessed by man, I don't think you accomplished your goal. I think you did the opposite.
What you are showing is that Genesis contains a typical creation myth suggesting that its origin is the same as all of the others - human imagination.
You also give us a glimpse at how a faith based confirmation bias works. You see what you want to see.You want to see the Genesis story and the Big Bang as being essentially the same story, so you do. Those not encumbered by such a confirmation bias see that they have almost nothing in common
You also tacitly imply that science, not the Bible, is the final arbiter of truth when you defer to the scientific account: "See, we got something right." Think about that: If you considered the Bible authoritative instead, you'd say that science only got one thing right, but failed to identify the six days of creation or the manufacturing of mankind from dust and a rib.
But that's not what you did, is it?
Further, no one can, nor will be able to explain how out of nothing, everything came into being, the Big Bang.
For starters, that's not only not the only naturalistic origins hypothesis, it's not the best one.
Second, it need never be explained. If we cannot explain it, then it remains unexplained. The critical thinker doesn't just take the leap of faith to a god hypothesis because he can't solve the origins problem. All candidate hypotheses that cannot be ruled out remain on the list of possibilities, including yours - a creator god. That also cannot be ruled out.
That's the difference between reason and evidence based though, and faith. Your list is already down to one possibility and probably has been for decades based only on a will to believe. Doing that is a logical error. Your list should include a multiverse hypothesis, for example, by which I mean any hypothesis that invokes an unconscious substance from which universes of all possible types emerge like bubbles in champagne. You have no means to rule it out, but probably already have.