But what if someone questions everything to the point where they no longer kept their faith, but rather renounced it due to the vast amount of unkowns and uncertainties in the world's religions (and yes, every single religion in the world has a large amount of unknowns)? I saw a shirt once that said "not seeing is believing." I, personally, am not a particularly religious person, and you may not appreciate that or like me and my ideas and I respect that, but when someone believes in something that they don't even know exists, how can they be sure that what they believe to be true is really the truth? A reply might look like: "But that's the point of it being called 'faith,' you don't know if you're right or wrong or if your beliefs are correct, you don't know if there is a God or some other form of being on a higher plane than ourselves, and the belief that your beliefs are correct is enough justification for you to believe your beliefs to be the truth." If this is your response, then you're about halway there with my point.
My point is this:
Scientific standpoint:
If you cannot mathematically or scientifically prove that something exists, then it must not exist. Ockham's Razor (also Occam) states that "entities should not be multiplied beyond necessity," or more commonly as "all things being equal, the simplest solution tends to be the best one." In other words, when multiple rival/diverse theories are similar in other respects, the idea suggests selecting the theory composed of the fewest assumptions, postulates and hypothetical entities (a God of any kind).
So, using the same school of thought we arrive at the conclusion that God must not exist.
But no-one can be sure about anything anymore because of all the different ideas and belief systems in our world.
So.................who, or what, do we believe ad why?