This is how a typical person's belief goes: That person is born, his parents teach him what they believe, once he's old enough he starts to question his belief, but convinces himself that what he believes is right, even though he's not fully convinced with that.
Why do we do that? So we won't have to accept the fact that we've been wrong for so long. That and because we are taught that you should believe blindly.
I don't know about you but I think that is wrong!
If you're taking a test, you write your answers, and before you give your answer sheet, you review your answers and you find a mistake, do you correct it or do you just submit it as it is because you don't want to accept that you were wrong? Sounds silly, doesn't it?
Which is better? Dying believing the wrong thing or correcting yourself and dying believing the right thing?
'So Jesus said to those who believed in him, "If you obey my teaching, you are really my disciple, you will know the truth, and the truth will set you free.'
Seek the truth damn it! Question your faith, if it is right you can never prove it wrong, and if anyone can prove it wrong then it's wrong, so you might as well not believe it.
Take Christianity for example, it's been around for over 2000 years so far and no one has been able to prove it wrong, no one can say "It couldn't have happened because if it has actually happened XXXXXXX would have been impossible". No one can say that.
On the other hand, certain Christian beliefs are obviously wrong: Kneeling and praying before statues. COME ON! It's mentioned in so many places:
"But when you pray, go into your room, close the door and pray to your Father, who is unseen. Then your Father, who sees what is done in secret, will reward you."
"Do not make idols or set up an image or a sacred stone for yourselves, and do not place a carved stone in your land to bow down before it. I am the LORD your God."
There you go! A belief proven wrong.
Some might argue that not all Christian teachings can be found in the bible and that many things were started after the bible was written. That raises a lot of questions, one of which is: How do you know who is credible enough to tell people what to do? The pope?
"You shouldn't wear black all the time!", that is one of such teachings, there are many wrong things about this: It's either OK or not OK to wear black, how often is not relevant; it's not in the bible; the reason they claim you shouldn't do that is because black is assosicated with evil, but that is in humans' eyes only, not God's for God looks at the heart.
And don't even get me started on Hail Mary and the rosary!
You know what I think? I think people keep coming up with such rules so they'll feel good about themselves and feel they are righteous and worthy of God's forgiveness, but you know what? Read your bible!
"...I no longer have a righteousness of my own, the kind that is gained by obeying the Law. I now have the righteousess that is given through faith in Christ, the righteousness that comes from God and is based on faith."