Belief is crucial if it rises to the level of conviction, certitude, commitment, and faith. Belief is far short of knowledge though.
Why would someone have certitude if they did not know that their beliefs are true?
Belief is not factual knowledge but that does not mean that a belief cannot be 'known' to be true.
knowledge;
1. facts, information, and skills acquired by a person through experience or education; the theoretical or practical understanding of a subject.
2. awareness or familiarity gained by experience of a fact or situation.
I cannot prove that my religion is true so it is not a fact, but I can still know it is true because not all knowledge is not based on facts we can prove. Some knowledge is based upon an awareness or familiarity gained by experience of a fact or situation.
We should never claim that what we believe is true and expect others to believe it is true because we cannot prove it is true. But we can still say we know it is true because certitude is an inner knowing, and nobody can take our certitude away from us because it isn't theirs to take.
Why would anyone be 100% absolutely certain in their beliefs knowing it's just a belief? That's totally irrational.
Why not? A person can be absolutely certain that their beliefs are true.
That is an inner knowing that cannot be explained to others who do not have that kind of knowledge.
Then there's believing in what you know to be true which is a contradiction.
I think you are caught up in words and what you think they mean. As I said above a person can know that what they believe is true.
Actually if someone calls them self a believer aren't they admitting that they lack knowledge in the area they believe in?
No, because there might be factual knowledge surrounding the belief, which might be why they believe it is true.
How important are facts within your religious beliefs? Facts???
www.religiousforums.com
However, they have to admit they lack proof because nobody can prove that a religious belief is true.
Beliefs are best served as an hypothesis to explore.
They are, until you explore them extensively and come to believe they are true.