According to rewned biblical scholar Rudolf Schnackenburg, a truly historical portrait of Jesus is unattainable because the primary sources written about Jesus were t historical records as such. What is attainable, however, is a faith interpretation of Jesus' life and works, gleaned from the writings of those closest to the life of Christ: the four Gospels. Thus, Schnackenburg provides a full faith interpretation of Jesus as each Gospel community portrayed him. A surprising number of commonalities about Jesus are revealed, and a fully recognizable portrait of Jesus emerges.
Rudolf Schnackenburg was Professor Emeritus of New Testament Exegesis at the University of Wurzburg in Germany until his death in 2002. He is the author of monumental commentaries on the Gospel of John, the letters of John, and Ephesians.