It makes me laugh when religious peoples say that science can never prove anything, although theoretically true it is a very poorly constructed excuse as a counter argument, but funnily so are most, including the classic if you can't prove it then it has the possibility to exist.
If religious advocaters want a decent argument, then we should both start with a clean slate then see which one can come up with the most evidence to support their claim assuming that nothing exists until proven.
I would like to know from a religious perspective what is the single most important and undeniable solid piece of evidence that is grounding there claim in existence.