” Who or what created the big bang?”
I’m sure you would say God.
But then one can ask who created God.
Believing that something always existed is just as tough as believing that something came out of nothing.
Of course one can believe anything, but as far as knowing, we don’t know. I never understood why people have such a hard time admitting that they don’t know something.
Christian faith isn’t a philosophical tome. It is a claim about things revealed to humanity.
I have no problem saying I don’t know. I also admit that what I do know is subject to change with new data. Right now as for pretty much my whole life I believe in God. The Christian version. It matches what I see in this world. The exact mechanics of creation are beyond me and I dare say all of humanity. Although we clearly have some hypotheses.