irenaeus
Against Heresies: Book I
A patient description of the Gnostic systems, setting out what they actually taught before answering it.
Against Heresies: Book II
An argument from reason and Scripture that one God made all things, against the many-storeyed schemes.
Against Heresies: Book III
The apostolic witness set out: the four Gospels, the churches' shared teaching, and the one Christ.
Against Heresies: Book IV
The unity of the two Testaments, shown from the words of the Lord himself.
Against Heresies: Book V
The resurrection of the body, the reality of the flesh redeemed, and the hope of the kingdom.
Fragments from the Lost Writings of Irenaeus
Surviving pieces of Irenaeus' other works, preserved in the quotations of later writers.
The Demonstration of the Apostolic Preaching
A short summary of the faith for a friend, telling the one story from creation to Christ.