Forgive my lack of terminology accuracy.
I'll try to answer.
Deductive logic (I think is the right term)
Three main options I know of are:
Everything physical has always existed forever in the past. Or keeps exploding and imploding and exploding again.
Or the big bang started from nothing.
Or God, who is a disembodied spirit outside of the universe we know, created it.
If we then fit these ideas against what we know today. I think the God explanation holds all the facts in the best balance.
Many disagree. That's okay with me.
The first 2 (seem) impossible to me. Maybe Shad or penguin or Dustin can help me out here. Perhaps this isn't Deductive logic because I can proof the first 2 wrong.
This is the premise of my logic and we could go deeper. But there is the nutshell.
Got to go to work.
All the best. If I am delusional help me out
Don't take my word for it. Get to know God in your own experience if you want to.