Dating the new testament canon
Thus, while there was a good measure of debate in the Early Church over the New Testament canon, the major writings are claimed to have been accepted by almost all Christians by the middle of the 3rd century.The first council that accepted the present canon of the New Testament may have been the Synod of Hippo Regius in North Africa (393).These also differed from the versions accepted by later Christian Orthodoxy.
Still others represented a summation of the teaching entrusted to a particular church center.
could not refuse to discuss the question raised by Marcion, whether there is such opposition between different parts of what he regards as the word of God, that all cannot come from the same author.
Since Marcion separated the New Testament from the Old, he is necessarily subsequent to that which he separated, inasmuch as it was only in his power to separate what was previously united. Price argues that the evidence that the early church fathers, such as Clement, Ignatius, and Polycarp, knew of the Pauline epistles is unclear, and concludes that Marcion was the first person to collect Paul's writings to various churches and to treat ten Pauline letters, some of them Marcion's own compositions, together with an earlier version of Luke (not the Gospel of Luke as now known): But the first collector of the Pauline Epistles had been Marcion.
The reference to, presumably the Septuagint, as the "other" Scripture denotes that the author of 2 Peter regarded, at least, the works of Paul that had been written by his time as Scripture.
It is difficult to determine the date of composition; commentaries and reference books have placed 2 Peter in almost every decade from AD 60 to 160.He spread his beliefs widely; they became known as Marcionism.