Saint Irenaeus of Lyons
Benedict can quote from memory from the Church fathers and the scriptures. He is now using he is Wednesday addresses to teach about the early fathers:
"Dear Brothers and Sisters,
"Continuing our catechesis on the Church Fathers, we turn now to Saint Irenaeus of Lyons, a great theologian and bishop at the end of the second century. In his writings, Irenaeus clearly sets forth the contents of the apostolic faith and appeals to the Church’s living tradition in order to defend that faith from false teachings. He thus emphasizes the regula fidei: the “rule of faith” contained in the Apostles’ Creed and in the Gospel proclaimed by the Church’s Bishops. The Gospel Irenaeus preached was the Gospel preached by his teacher Polycarp, who in turn received it from the Apostle John in an unbroken line of succession going back to Christ himself. Irenaeus also writes of the unique authority of the Church of Rome as founded on the Apostles. This zealous pastor illustrates for us three important characteristics of the Apostolic Tradition: it is “public”, because it is available to all through the teaching of the Bishops; it is “one”, because its content remains the same despite the variety of languages and cultures; and it is “pneumatic”, because, through it, the Holy Spirit continues to enliven and renew the Church even today."