During the persecution of Marcus Aurelius, Irenaeus was a priest of the ... of a contemporary of the heroic age of the Church, of one who had heard St. Polycarp, the disciple of St.

Saint Irenaeus succeeded him as Bishop of Lyons. Besides the assaults of paganism, Irenaeus found himself compelled to do battle with many Gnostic heresies, against which he wrote his greatest work, A ...

And this is most abundant proof that there is one and the same life-giving faith, which has been preserved in the Church from the Apostles until now, and handed down in truth." St. Irenaeus ...