If one is predisposed to not believing in God nothing will prove Gods existence. Although I met a former atheist who came to believe in God after he found himself dangling off a rock face very high up and calling on God to save him...he was perplexed...”why am I calling on someone who I KNOW doesn’t exist?” His demonstrated irrationality caused him to address his opinions and beliefs.
To others, this may be anecdotal evidence at best; but that does not mean it isn't so. I was there; I know