Regarding the authorship of this epistle, it is the most disputed epistle of the New Testament. However, not only does the author clearly identify himself as Simon Peter (1:1), but a number of other internal evidences point to the apostle Peter as the author. In a very personal section, almost as the final testament of a dying father, he uses the first person singular referring to himself (1:14), declares himself as an eyewitness of the transfiguration (cf. 1:16-18 with Matt. 17:1-5), asserts this letter is his second one to his readers (3:1), and shows his personal acquaintance with the apostle Paul whom he calls, “our dear brother” (3:15). Regarding Peter’s authorship, Ryrie writes:
Many have suggested that someone other than Peter wrote this letter after A.D. 80 because of (1) differences in style, (2) its supposed dependence on Jude, and (3) the mention of Paul’s letters having been collected (2 Pet. 3:16). However, using a different scribe or no scribe would also have resulted in stylistic changes; there is no reason why Peter should not have borrowed from Jude, though it is more likely that Jude was written later than 2 Peter; and 3:16 does not necessarily refer to all of Paul’s letters but only those written up to that time. Furthermore, similarities between 1 and 2 Peter point to the same author, and its acceptance in the canon demands apostolic authority behind it. Assuming Petrine authorship, the letter was written just before his martyrdom in A.D. 67 and most likely from Rome.
In the fourth century the Petrine authorship of 2 Peter was strongly affirmed. Two of the great theologians of the early church, Athanasius and Augustine, considered 2 Peter as canonical. The Council of Laodicea (A.D. 372) included the epistle in the canon of Scripture. Jerome placed 2 Peter in the Latin Vulgate (ca. A.D. 404). Also the great third Council of Carthage (A.D. 397) recognized the intrinsic authority and worth of 2 Peter and formally affirmed that it was written by the apostle Peter.
Though 2 Peter is the least attested book in the New Testament, its external support far surpasses that of many of the other Bible books. The absence of early church tradition supporting 2 Peter certainly could have been due to the letter’s brevity and the lack of communication among Christians during times of heavy persecution. Consequently the silence of the second century and the caution of the third century posed no insurmountable problems for the careful scholarship of the canonical councils of the fourth century.
This epistle is titled Petrou B, “Second Peter,” to distinguish it from the first letter written by Peter.
This is the second of two letters Peter wrote to this group of believers (see 3:1) as a kind of final testament, warning, and “last day” letter (1:14; 2:1f.; 3:3), written at the close of the apostle’s career (1:12-14). He was writing to Christians of like precious faith, undoubtedly, to Jewish and Gentile churches of “Pontus, Galatia, Cappadocia, Asia, and Bithynia” (1 Peter 1:1).
As a kind of farewell letter warning of dangerous clouds on the horizon, Peter wrote at the end of his career. According to the early church historian, Eusebius, Peter was martyred during Nero’s persecutions (about A.D. 67–68). The letter was most likely written one of these years.
Theme and Purpose:
As the apostle Paul warned of the coming dangers of apostasy in the later years of his life and ministry (2 Timothy), so Peter also warned of the ever rising dangers of false teachers as was predicted by the prophets, by the Lord Himself, and His apostles (2:1; 3:1-3). The purpose of this short letter is found in this very issue, this rise of false teachers. Thus, the purpose is one of warning against these dangers facing the church.
Seeing that God has provided all that is needed for life and godliness (1:3), 1 Peter is a passionate plea for his audience to grow and mature in Christ, to be neither idle nor unfruitful (1:8), and with this as a foundation, to guard against the rising tide of false teachers. This was precipitated by the fact that Peter knew his time on earth was short (1:13-15) and that the body of Christ faced immediate danger (2:1-3). Thus, Peter desired to refresh their memories and stir their thinking (1:13; 3:1-2) so that they might have his teaching firmly in mind (1:15). To do this, he carefully described what mature believers should look like, encouraging them to grow in grace and knowledge of the Savior (cf. 1:2-11; 3:18). As a further foundation for handling false teachers, he reminded them of the nature of God’s Word as their sure foundation (1:12-21) and then warned against sure coming dangers of false teachers whom he also carefully described along with their sure judgment (chap. 2). Finally, he encouraged his readers with the certainty of Christ’s return (3:1-16). With this final emphasis on the return of the Lord, Peter gave a final challenge. “Therefore, dear friends, since you are waiting for these things, strive to be found at peace, without spot or blemish, when you come into his presence… Therefore, dear friends, since you have been forewarned, be on your guard that you do not get led astray by the error of these unprincipled men, and fall from your firm grasp on the truth. But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To him be the honor both now and on that eternal day” (3:14, 17-18).
The key word or concept of 2 Peter is that of warning against false prophets or teachers and mockers with false words (2:1-3; 3:3).
Chapter 1 is the key chapter of 2 Peter because in it, we are given one of the clearest passages on the nature of the inspiration of the Bible. While 2 Timothy 3:16 clearly declares the fact of inspiration, 2 Peter 1:19-21 describes the how of inspiration and more. It shows us that (1) the Scripture is absolutely reliable, a sure word of prophecy, (2) that no prophecy of Scripture ever comes about by the prophet’s own imagination, i.e., he did not originate it himself, but rather (3) it was the Holy Spirit Himself who is the source of the Scripture ensuring its accuracy. See the footnote taken from the NET Bible.
Peter speaks of Christ as the source of life and godliness, and, in keeping with the focus, he speaks of Christ as “Lord and Savior” four times, and speaks of Him as “Lord” fourteen times. In addition, he refers to the glorious transfiguration on the holy mountain and looks forward to the Savior’s second coming or parousia. At this time the whole world will see that which Peter and the other two disciples were privileged to see on that holy mountain.