The authentic and complete text of Saint Irenaeus:
“The glory of God is man fully alive, and the life of man is the vision of God. If the revelation of God through creation already brings life to all living beings on the earth, how much more will the manifestation of the Father by the Word bring life to those who see God”
(AH IV, 20, 7)
AH = Adversus Haereses (Against the Heresies) – Saint Irenaeus.
Irenaeus was born in Asia Minor about the year 125. He was still a young man when he met Polycarp of Smyrna, who represented a generation which had known the Apostles chosen by Christ, especially Saint John.
After the persecution of 177, it was necessary to rebuild the Church of God which was at Lyon. Irenaeus succeeded Pothinus and thus became the second bishop of Lyon-Vienne. Not only did he assure the presence of Christ the preacher and shepherd at the crossroads of the Three Gauls, but at the same time he carried out the composition of his masterpiece which is cited today under the title of Adversus Haereses (Against the Heresies). The actual title expresses more clearly the double movement of Irenaeus’ theology and *polemic. It is called Detection and Refutation of the False Gnosis.
(a good read if you can get through it)
* Polemics, is the practice of disputing or controverting religious, philosophical, or political matters. As such, a polemic text on a topic is often written specifically to dispute or refute a position or theory that is widely viewed to be beyond reproach.