Philo of Alexandria was a few years older than Jesus of Nazareth and lived longer. He belonged to a wealthy and cultured family, prominent in the Jewish community in Alexandria. Philo had contacts with the highest level of Roman authorities. He was on a risky diplomatic mission to Caligula on behalf of the persecuted Jews of Alexandria during what turned out to be Caligula's last days. Herod Agrippa was a friend in Rome during Philo's hour of greatest need. Philo is a sympathetic source on what sounds very much like a contemporary Jewish monastic movement. He is also one of the creators of...