Irenaeus of Lyon was one of the most influential figures of the early Church. Born in Smyrna and shaped by the teachings of Polycarp and the Apostle John, he stood at the crossroads of history, theology, and culture in the second century. Confronting the seductive allure of Gnosticism and the theological distortions of Marcion, he crafted Against Heresies—a landmark work of Christian thought that laid the foundations for biblical orthodoxy and the doctrine of the Incarnation.

Set against the backdrop of the Roman Empire—from the Julio-Claudian dynasty to the Five Good Emperors—this book explores Irenaeus’s world, his education in Greek philosophy and rhetoric, and his enduring theological vision. At its heart lies the concept of recapitulation: Christ as the true image of God, restoring humanity to its original purpose and glory.

Accessible yet scholarly, Irenaeus and the Glory of God is essential reading for anyone interested in the Church Fathers, early Christian doctrine, and the enduring relevance of Irenaeus’s message for today’s Church.