The Gospel of John decidedly and deliberately differs from Matthew, Mark, and Luke. John the Evangelist wants to give us a theological Gospel containing the highest possible Christology. In his opening sentence John tells us that this one who is the Word of God is fully divine. While the other Gospels give genealogies and tell us that Jesus comes from Bethlehem and Nazareth, John is not interested in those particular biographical details. For John the only genealogy of Jesus that really matters is that he is the Son of God, who was in the beginning with God, and that he is the truth of God who comes from heaven, that is from above.