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

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

New York Times-bestselling author Francis Chan calls for believers and churches everywhere to align our hearts with God and start taking seriously His commands

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