 Matthew and Mark, and Luke for that matter, Matthew and Mark record the third year of Jesus' ministry. John wrote the book of John, the gospel of John, years and years later. Actually, after all the disciples, the apostles have been martyred except for him. He writes it years later because he reads Matthew, Mark, and Luke's version, and they're good, but they only record the last year of his ministry. That's why in John you have all these things that you will not find in Matthew, Mark, and Luke. Matthew, Mark, and Luke are called synoptic.