The bible is just a collection of ancient beliefs and customs with some ancient bits of wisdom thrown in here and there, but also some inaccuracy, impossbilities and some downright nasty shite. Word of god? According to some, but not the only.
The path to enlightenment and peace has not been found exclusively by it's adherents alone. All religions have the same ultimate goal and beliefs all look for the same answers. Proof of this exists all around and is undeniable; there is more than one spiritual path. Realizing this is the first step in my opinion.
In fact, if the philisophical idea of god is indeed sublime and universal, it exists within all those who seek and the path by which one travels doesn't matter, since the goal is the same. For instance, is the catholic's experience and belief any less credible or real on a personal level than a protestant, or an evangelical or perhaps even a charismatic? What about the hindu, buddhist or muslim? How can one believer say that other beliefs about god are wrong?
The fact is there have been and continue to be ideas and beliefs about the ultimate questions that are as varied and diverse as there are people. Interpretation and subjective experience has and continues to rule the nature of beliefs and worldview. No conclusive, absolute message that is universally agreed upon has ever been received. Fact.