Development of the New Testament canon the Synoptic Gospels. Epiphanius of Salamis called these people the Alogi, because they rejected the Logos doctrine of John and because he claimed they were illogical. There may have also been a dispute over the doctrine of the Paraclete. Gaius or Caius, presbyter of Rome (early 3rd century), was apparently associated with this movement. Eusebius, in his Church History (c. 330), mentioned the books of New Testament according to him: The Apocalypse of John, also called Revelation, is counted as both accepted (Kirsopp. Lake translation: "Recognized") and disputed, which has caused some confusion over what exactly Eusebius meant by doing
New Testament Writings attributed to the apostles circulated among the earliest Christian communities and the Pauline epistles were circulating, perhaps in collected forms, by the end of the 1st century AD. One of the earliest attempts at solidifying a canon was made by Marcion, "circa" 140 AD, who accepted only a modified version of Luke (the Gospel of Marcion) and ten of Paul's letters, while rejecting the Old Testament entirely. His canon was increasingly rejected by other groups of Christians, notably the proto-orthodox Christians, as was his theology, Marcionism. Adolf Harnack in "Origin of the New Testament" (1914) observed that the church