Gospel of Thomas in the late 2nd century that "since there are four quarters of the earth ... it is fitting that the church should have four pillars ... the four Gospels" ("Against Heresies", 3.11.8), and then shortly thereafter made the first known quotation from a fourth gospel—the canonical version of the Gospel of John. The late 2nd-century Muratorian fragment also recognizes only the three synoptic gospels and John. Bible scholar Bruce Metzger wrote regarding the formation of the New Testament canon, "Although the fringes of the emerging canon remained unsettled for generations, a high degree of unanimity concerning the greater part of
Jerusalem School of Synoptic Research seems to be concerned with not holding to an assumed-default position of Markan priority. It is especially the third assumption in more individually pronounced forms that has invited a response of the academic community. Some scholars have perceived the Jerusalem School as a group that holds to Lukan Priority. But this perception is incomplete since it is only Robert Lindsey and David Bivin who have argued strongly for Lukan priority. The third methodological assumption of the Jerusalem School is much broader and open, without any one theory being affirmed: Many scholars affirm Semitic quality of the Synoptic Gospel material as