Dr. John Rao shows that in order for theology to grow, sources of Christian teaching had to be more clearly identified, authoritative interpreters pinpointed, and, inevitably, the value of Greek philosophical language and thought admitted. Alexandria, long a center for Jewish use of Greek Platonic and rhetorical tools, was crucial in Christian theological growth. Africa, too, despite the suspicions of Tertullian, resorted to Roman legal terminology to describe Christian themes more fully.