In both content and style this letter is very different from 1 Peter, which immediately precedes it in the canon. The opening verse attributes it to “Symeon Peter, a slave and apostle of Jesus Christ.” Moreover, the author in 2 Pt 3:1 calls his work a “second letter,” referring probably to 1 Peter as his first, and in 2 Pt 1:18 counts himself among those present at the transfiguration of Jesus. Nevertheless, acceptance of 2 Peter into the New Testament canon met with great resistance in the early church. The oldest certain reference to it comes from Origen in the early third century. While he himself accepted both Petrine letters as canonical, he testifies that others rejected 2 Peter. As late as the fifth century some local churches still excluded it from the canon, but eventually it was universally adopted. The principal reason for the long delay was the persistent doubt that the letter stemmed from the apostle Peter.

Among modern scholars there is wide agreement that 2 Peter is a pseudonymous work, i.e., one written by a later author who attributed it to Peter according to a literary convention popular at the time. It gives the impression of being more remote in time from the apostolic period than 1 Peter; indeed, many think it is the latest work in the New Testament and assign it to the first or even the second quarter of the second century.  The principal reasons for this view are the following. The author refers to the apostles and “our ancestors” as belonging to a previous generation, now dead (2 Pt 3:2–4). A collection of Paul’s letters exists and appears to be well known, but disputes have arisen about the interpretation of them (2 Pt 3:14–16). The passage about false teachers (2 Pt 2:1–18) contains a number of literary contacts with Jude 4–16, and it is generally agreed that 2 Peter depends upon Jude, not vice versa. Finally, the principal problem exercising the author is the false teaching of “scoffers” who have concluded from the delay of the parousia that the Lord is not going to return. This could scarcely have been an issue during the lifetime of Simon Peter.  The author must have been a Jewish Christian of the dispersion for, while his Jewish heritage is evident in various features of his thought and style, he writes in the rather stilted literary Greek of the Hellenistic period. He appeals to tradition against the twin threat of doctrinal error and moral laxity, which appear to reflect an early stage of what later developed into full-blown gnosticism. Thus he forms a link between the apostolic period and the church of subsequent ages