The Gospels were written by either an eye witness or by someone with direct access to the eyewitnesses. They wrote what they believed to be historically accurate, even though there was in all likelihood some metaphor or hyperbole included in that. That has been agreed upon.
That is the claim. I do not see any evidence that claim is actually true. If fact, the internal evidence shows the first is not true, and shows it is highly unlikely for the second.