Stage 1: The Ministry of Jesus
Traditions dating from Jesus’ words and deeds during his ministry in the late 20s [example from John 9: Jesus was known as a healer]
Stage 2: Post-Resurrectional Preaching of the Apostles
Convictions about Jesus that arose after the Resurrection, especially that he was the divine “Lord” and “Son of God” [example: the blind man worships Jesus, John 9:38].
Stage 3: The Writing of the Gospels by the Evangelists
Texts about Jesus that are shaped by the situations, concerns, and insights of the Gospel writers themselves [example: the blind man’s parents fear “the Jews,” as if Jews are a separate group, John 9:22].