Something to shake the very foundation of your lack of faith

[robvalue]

If an account can be proof of itself, you can prove anything is true just by saying it.

Consider why you don't instantly believe that what happens in fictional stories actually occured in real life. If all you can is, "It's fiction" then we can just as easily say the same about holy books. Otherwise, you have to show what the difference is. Fiction can include any number of actual historical events, with varying degrees of accuracy.