The gospels (M,M,L and J) are not autobiographies. They were not written by Jesus. I don't see why one should assume that they hold a higher level of authenticity than Peter's or Paul's epistles.
2 Timothy 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
2 Timothy 3:16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
I happen to believe that Paul was divinely inspired. But why would a quote from Paul that "scripture is given by inspiration from God" prove to a skeptic that Paul was inspired?