John is the most unique of the four gospels. Nearly 90% of his material is unique to himself. His writing style is interesting because he never refers to himself by name and he does not try and offer a historical approach to the life and teachings of Jesus Christ. Instead, John tries to establish the divinity of Christ by showing his God-like power in mortality. It is quite apparent, more so than in the other gospel, that John is writing from a post-resurrection perspective. Take for example, the additional commentary whenever Judas Iscariot is mentioned. It is clear that, by the time John is writing his gospel, Judas has betrayed the Savior and John is not trying to withhold that until the event in the record.