I disagree,John was written at least 93years after the death of Christ so was not written by John the disciple,Mathew and Luke use a massive amount of the earliest gospel,ie Mark. None of the gospels are eye witness accounts as far as I can see,I can just about belive they were handed down through the generations by word of mouth but still can't comprehend how such an important period of human history was only recorded 60-70 years at the earliest after His death? I'm still researching who the original authors were according to religious and non religiuos writers,I'm also looking to find any references to jesus from non religious commentators of a His time,like the Romans for instance,who were meticulous record keepers and surley would have mentioned a Man/movement that was causing them much concern at the time