"Many of the Christian writers grew up in communities where the teaching of the Stoics was all-pervasive in cultured circles. Through this philosophy they became familiar with the concept that "reason pervades all things like a fiery essence, and that the soul of man is a spark from this universal reason." Philo, chief exponent of the Alexandrian school of Judaism, who lived during the period 30 B.C.-50 A.D., was another channel through which Greek ideas flowed into the early [Christian] church. Philo attempted to combine Hebrew religion and Greek philosophy. He gave great impetus to the tendency to allegorize the Old Testament and to derive from it highly speculative ideas which became universal among Christian theologians. Philo's interpretation of the Greek term "Logos" profoundly affected Christian thought."