Irenaeus John the Apostle, and that the Gospel of Luke was written by Luke, the companion of Paul. Scholars contend that Irenaeus quotes from 21 of the 27 New Testament Texts: Matthew ("Book 3, Chapter 16") Mark ("Book 3, Chapter 10") Luke ("Book 3, Chapter 14") John ("Book 3, Chapter 11") Acts of the Apostles ("Book 3, Chapter 14") Romans ("Book 3, Chapter 16") 1 Corinthians ("Book 1, Chapter 3") 2 Corinthians ("Book 3, Chapter 7") Galatians ("Book 3, Chapter 22") Ephesians ("Book 5, Chapter 2") Philippians ("Book 4, Chapter 18") Colossians ("Book 1, Chapter 3") 1 Thessalonians ("Book 5, Chapter
Development of the New Testament canon present in none of these texts. The narrative mainly follows the chronology of John. This is called the Diatessaron ("(Harmony) Through Four") and it became the official Gospel text of the Syraic church, centered in Edessa. Irenaeus of Lyons referred directly to a defined set of four gospels (the "Tetramorph"), "c". 180. In his central work, "Adversus Haereses" Irenaeus denounced various early Christian groups that used only one gospel, such as Marcionism which used only Marcion's version of Luke, or the Ebionites which seem to have used an Aramaic version of Matthew, as well as groups that used more than