The initial step for us all to come to knowledge of God is contemplation of nature.
Irenaeus of LyonsAs long as any one has the means of doing good to his neighbours, and does not do so, he shall be reckoned a stranger to the love of the Lord.
Irenaeus of LyonsThe Virgin Mary, being obedient to his word, received from an angel the glad tidings that she would bear God.
Irenaeus of LyonsThe preaching of the Church truly continues without change and is everywhere the same. It has the testimony of the Prophets and Apostles and all their disciples.
Irenaeus of Lyons[Naaman] dipped himself," it says, "seven times in Jordan." It was not for nothing that Naaman of old, when suffering from leprosy, was purified upon his being baptized, but as an indication to us. For as we are lepers in sin, we are made clean by means of the sacred water and the invocation of the Lord from our old transgressions, being spiritually regenerated as new-born babes, even as the Lord has declared: "Except a man be born again through water and the Spirit, he shall not enter into the kingdom of heaven.
Irenaeus of Lyons