2 Peter 1:15

Yea, I will give diligence that at every time ye may be able after my decease to call these things to remembrance.

Dummelow thought that "these things" had primary reference to Peter's first epistle, but that "more than his one letter is meant."[42] Payne leaned toward the idea that "the writer means the Gospel of Mark, which early tradition tells us was the written record of much of Peter's preaching."[43] However, the view here is that Peter meant the entire corpus of Christian doctrine which the church at the date of this letter already possessed, and which was acknowledged by Peter in 2 Peter 1:12. See more on this in the introduction.

It is strange that the commentators are unanimously silent with reference to one of the biggest things in the verse, namely, that Peter entertained no idea whatever relative to any successor of his, rising up after him with his full plenary authority and inspiration. If he had, there would not have been any need for him to provide written records of important Christian truth that would be available after his death. This and the two previous verses reveal the purposes of Peter's writing this letter, that being to record for all ages to come a written record of vital Christian teaching.

[42] J. G. Dummelow, op. cit., p. 1050.

[43] David F. Payne, op. cit., p. 601.