Faith comes in many forms, from many places and with different "degrees". This self-imposed complication makes human beings a bit irrational at times, when some group starts to think differently from another.
Many wars, many assassinations, many injustices have been committed in the name of some faith or another and even now, with all of our technology and widespread knowledge, we are at about the same state as we were when we started.
We can make a little change now: let us not be blinded by faith, so we can understand it and share it with the people who may want to share it. Let us respect those who think differently and try to learn from them, so our view of the world is wider.