Gospel of Marcion this gospel to Luke the Evangelist as a fabrication, so he began what he saw as a restoration of the original gospel as given to Paul. Von Harnack wrote that: While it remains a minority hypothesis, Biblical scholars as varied as Johann Salomo Semler, Johann Gottfried Eichhorn, Albrecht Ritschl, John Knox (not to be confused), and Joseph B Tyson have posited that the Gospel of Luke was a later redaction of the Gospel of Marcion, rather than the other way around. In 2008, Matthias Klinghardt proposed a new solution to the synoptic problem involving the Gospel of Marcion, in which
Development of the New Testament canon a novelty in Irenaeus's time. "Against Heresies" 3.11.7 acknowledges that many heterodox Christians use only one gospel while 3.11.9 acknowledges that some use more than four. The success of Tatian's Diatessaron in about the same time period is "...a powerful indication that the fourfold Gospel contemporaneously sponsored by Irenaeus was not broadly, let alone universally, recognized." Irenaeus apparently quotes from 21 of the New Testament books and names the author he thought wrote the text. He mentions the four gospels, Acts, the Pauline epistles with the exception of Hebrews and Philemon, as well as the first epistle of Peter, and