After I wrote Misquoting Jesus, I started getting a lot of emails from all sorts of people. One common kind of email was from people who wanted me to know that even though the New Testament had textual problems, the books that they revered were absolutely perfect, with no mistakes & no textual errors. Most commonly these emails came from people who wanted me to convert to follow either the Book of Mormon or (on the other side of the religious spectrum!) the Koran.
My own view is that every piece of religious literature is produced by human hands, and that human hands are never perfect. Anyone who claims that a religious book is perfect is making a statement of faith, not a statement of fact. People believe that their own sacred texts are perfect, but very few of these people (including the kind-hearted ones who have sent me emails) have actually engaged in the kind of detailed textual study of their texts that I, and others like me, have engaged in with respect to the New Testament. If they did so - what would they find? My hunch is that they would find that all works of religious genius are produced by human hands, and that they all have the imprints of those hands still upon them. (Bart Ehrman, Misquoting Jesus, U.S.: Harper One, 2005, p. 255)