What Jesus was doing at the Last Supper has not been understood for the better part of 2,000 years. The reason for the misunderstanding is that Jesus, a Jewish teacher who was concerned with the sacrificial worship of Israel, has been treated as if he were the deity in a Hellenistic cult.
A generation after Jesus’ death, when the Gospels were written, the Romans had destroyed the Jerusalem Temple (in 70 C.E.); the most influential centers of Christianity were cities of the Mediterranean world such as Alexandria, Antioch, Corinth, Damascus, Ephesus and Rome. Although large numbers of Jews were also followers of Jesus, non-Jews came to predominate in the early Church. They controlled how the Gospels were written after 70 C.E. and how the texts were interpreted.