Well, clearly, because we trust before we see it and some had really see that faith works for them greatly, which is why their faith grew stronger. It's as simple as that. If you had chosen to be trapped in that mindset of seeing it as a, uh, "trump card", prefer to justify it using science and formulaes and, unwilling to give it a chance to see how it works, it will never work for you.
Science, I had already given it a go.....long time ago. And, don't jump into conclusion that I have not given other religion a chance because I
had, for a fact. Even now, I am still willing to understand how their religion works. Surely, I respect them as a form of teaching. Simply put, I'm not born a Christian, which means I was into another religion(s) before.
So, tell me, have you
wholeheartedly been a Christian? If yes, what made you backslide? Pray tell