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
Gospel of Peter in the canonical gospels was transmitted orally, through readings in the churches, i.e. that the text is based on what the author "remembers" about the other gospels, together with his own embellishments. Ron Cameron and others have further speculated the Gospel of Peter was written independently of the synoptic gospels using an early proto-gospel. A consequence of this is the potential existence of a source text that formed the basis of the passion narratives in Matthew, Luke, and Mark, as well as in Peter. Origen makes mention of the Gospel of Peter as agreeing with the tradition of the Hebrews.