None of the authors of the Bible ever met Jesus. Many Christians do not know this.
Many believers haven't even read the holy book they believe in. They just want to believe what is served up to them by the religious authorities of their church. Facts and historical accuracy are not for them. But this leaves an issue with any group claiming to have religious truth (which they basically all claim in one way or another).
One just has to read the Bible to see there are issues with these religious claims versus The Bible versus facts and reality.
Bart Ehrman challenges any believer to conduct a comparative analysis of the gospels. They contradict one another and not just once or twice, but many times. How can one claim to have any 'truth' when one's belief system's foundational book is flawed in this manner not to mention containing factual errors?