Some Christians base their faith on the Bible being the inerrant word of God. If something in the Bible would be found to be in error, the foundation of their belief system would collapse. Furthermore, these Christians hold that if one word or verse in the Bible cannot be accepted as true, than nothing in it can be depended on to be true, and that Christianity then becomes a total lie. They paint themselves into a theological corner of their own making.
The Bible, in its stories and teachings, is filled with truths that are essential for Christians to embrace. But that is not the same as accuracy in describing historical or scientific facts, which scripture never was intended to teach. But unfortunately, some people are unable to accept the Bible as being part of the revelation of God without the requirement of factual inerrancy.