This text is one of the most important and yet approachable works produced by Cyril. It was written after the Council of Ephesus (431) to explain his doctrine t

No period of history was more formative for the development of Christianity than the patristic age, when church leaders, monks, and laity established the standa

What did ancient Christians and pagans believe makes the unity of the nations? Just as he began serving as a major adviser at the Second Vatican Council in 1962

Interacting with theologians throughout the ages, Riches narrates the development of the church’s doctrine of Christ as an increasingly profound realization t

Despite Jesus' prayer that all Christians "be one," divisions have been epidemic in the body of Christ. Though we may think we know why this happens, Christena