This study examines how St. Augustine uses the motif Christus Sacerdos to synthesize the entire
mystery of Christ to define Christian identity and to oppose counter-identities and doctrines
especially those symbolized by pagan priesthoods. The bishop of Hippo continually joins these
three elements - Christology Christian identity and polemic - so that the doctrine of Christ
is always related to its implications for life «on the ground». Augustine shows how the
doctrine of Christ entails an identity and an ideal for Christians defining who they are and
what they are to become. He reinforces his teaching about Christ and the Christian with polemic
against opposing doctrines demonstrating the truth of the Christian religion in opposition to
pagan cult and portraying Christian identity in contrast to pagan counter-identity. The study
is notable for its attention to how Augustine's Christology functions in his broader thought
especially his pastoral care.
