The universe existing as a byproduct of God?

[T.J.]

lol, seriously? There's nothing faulty about dismissing something that includes supernatural elements when there's no evidence that supports it. As for the rest:

If God is all powerful why can't he rid of sin without having to give birth to himself and dying on a cross? That suggests he's not all powerful.
If he is all knowing how can there be free will if he knows everything we're going to do before we do it? Thus, he cannot be all knowing, or there is no free will.
If he is everywhere, then how did he leave the Garden of Eden and come back? Thus he cannot be everywhere.
If he is all good, why is there evil in the world, and why does he declare he created evil? (Yes, it's in your own book). Thus he cannot be all good.

These are what you would call contradictions.

I'm sure others here could list even more reasons if they can be bothered, but considering how well these discussions usually go I can't blame them if they'd rather sit this one out.