Although in former times it was doubted by some concerning the author and authority of this epistle, as may be seen Eusebius, Hist. lib. 3. cap. 22,notwithstanding seeing the superscription bears the name of Simon Peter, and the author declares, chapter 1:18, that he was one of the three disciples of CHRIST, who saw His glory on the mount, and especially that the doctrine represented in this epistle entirely agrees with the foregoing epistle of Peter, and with the writings of the other apostles. There is no cause to doubt of either of the two, and the christian church has also acknowledged this epistle for a Divine writing. The apostle Peter therefore writes this second epistle to the same believing, scattered Jews, to whom he had written the first, as appears in 2 Peter 3:1. The cause why he writes yet this second epistle unto them, he shows in 2 Peter 1:12, 13, etc. This epistle consists mainly in three parts, according to the number of the chapters. In the first, after the superscription and salutation, he relates the grace and spiritual benefits which God had bestowed upon them for their salvation, and exhorts them to increase therein more and more, and to add one christian virtue to another, thereby to be the more assured of their election, showing the cause why he yet again gives them this exhortation, and that they ought to receive the same, seeing he himself saw CHRIST’S glory on the mount, and his doctrine also agrees with the doctrine of the holy prophets, who were moved by the Holy Ghost, chapter 1. In the second he exhorts them to steadfastness in the christian doctrine, which they had received from the apostles, not to be seduced from it by false teachers, who rose up already, and more should yet arise; showing the destruction where into they will certainly bring themselves, and those who are seduced by them; and describing their actions and perverse conduct, in order that thereby they might be the better known and avoided, chapter 2. In the third he warns them of mockers and Epicureans, who deny the coming of CHRIST to judgment, and the destruction of the world, against whom he shows the certainty of this coming of CHRIST, and describes in what manner, and how fearful the destruction of the world shall be. And finally concludes the epistle with the testimony of Paul, with an earnest repetition of the principal exhortations, and with a thanksgiving unto CHRIST, chapter 3.