The divine nature of Jesus was a major issue for the Matthaean community, the crucial element separating the early Christians from their Jewish neighbors; while Mark begins with Jesus' baptism and temptations, Matthew goes back to Jesus' origins, showing him as the Son of God from his birth, the fulfillment of Old Testament messianic prophecies.[8] The title Son of David identifies Jesus as the healing and miracle-working Messiah of Israel (it is used exclusively in relation to miracles), sent to Israel alone.[9] As Son of Man he will return to judge the world, an expectation which his disciples recognise but of which his enemies are unaware.[10] As Son of God he is God revealing himself through his son, and Jesus proving his sonship through his obedience and example.[11]