John wasn't lazy........he was a fraud.
John was written in the 2nd century to silence the heretical free thinkers as regards who Jesus was. The book of John was written to dogmatise specifics about Jesus to unify the church who wanted complete control.
Matt, Mark, Luke, all deal with Gods Kingdom.....yet John focuses on Christ himself to establish the belief in a literal godman called Jesus to estblish the fact the Jews indeed have a true messiah.
John was illiterate as Acts 4:13 brings out....yet john writes perfect Greek! Here's a fisherman, untrained, who becomes a prolific greek writer, who gets treated like a prince while in prison with scrolls, pen, and whatever other writing utensils he needed.
John has Jesus last supper on Thursday while the other 3 had it on Friday.
John has Jesus ministry at 3 years instead of 1 like the others and also has the purification of the temple at the begining of Jesus ministry instead of the end of it like the other 3.
John also gets to be the guardian of the Blessed Virgin Mary by Jesus himself. Gee...I wonder who took care of Johns mom?
Purely the work of the Catholic editing committee.
Gumby