SAINTS AT WORK: St. Irenaeus of Lyon, the legacy of the early Church father and doctor of unity

As a boy, St. Irenaeus of Lyon sat at the feet of St. Polycarp, eagerly listening to the sermons of the early Christian bishop and disciple of the apostle John. Irenaeus grew up to write vastly influential documents that witnessed to the early Church’s understanding of topics ranging from the Old Testament to the Eucharist.…