We have learned from none others the plan of our salvation, than from those through whom the Gospel has come down to us, which they did at one time proclaim in public, and, at a later period, by the will of God, handed down to us in the Scriptures, to be the ground and pillar of our faith
Irenaeus of LyonsA man that is an heretic, after the first and second admonition, reject; knowing that he that is such is subverted, and sinneth, being condemned of himself.
Irenaeus of LyonsHe [Jesus] fought and conquered. On the one hand, he was man who struggled for his fathers and through his obedience cancelled their disobedience. On the other hand, he bound the strong one and freed the weak and bestowed salvation on his handiwork by abolishing sin. For he is our compassionate and merciful Lord who loves mankind ... Had not man conquered man's adversary, the enemy would not have been conquered justly. Again, had it not been God who bestowed salvation we would not possess it securely.
Irenaeus of LyonsPrior to Valentinus, those who follow Valentinus had no existence. Nor did those from Marcion exist before Marcion. Nor, in short, did any of those malignant-minded people, whom I have listed above, have any existence previous to the initiators and inventors of their perversity.
Irenaeus of Lyons