New Testament that Luke the Evangelist, an associate of St. Paul who was probably not an eyewitness to Jesus' ministry, wrote the Gospel of Luke and Acts of the Apostles. Scholars are also divided on the traditional claim that Mark the Evangelist, an associate of St. Peter who may have been an eyewitness to Jesus' ministry, wrote the Gospel of Mark. Scholars are more divided over the traditional claim that Matthew the Apostle wrote the Gospel of Matthew and that John the Apostle wrote the Gospel of John. Opinion, however, is widely divided on this issue and there is no widespread consensus.
New Testament the Anchor Bible Dictionary), may be the earliest known New Testament canon attributed to mainstream Christianity. It is similar, but not identical, to the modern New Testament canon. The oldest clear endorsement of Matthew, Mark, Luke, and John being the only legitimate gospels was written "circa" 180 AD. A four gospel canon (the "Tetramorph") was asserted by Irenaeus, who refers to it directly in his polemic "Against the Heresies", "It is not possible that the gospels can be either more or fewer in number than they are. For, since there are four zones of the world in which we live,