Like the Introduction to Jude, this Introduction presupposes the exegetical discussion in the commentary. Second Peter belongs to two literary genres, the letter and the testament. It not only calls itself a letter (3:1), but it is a real letter, whose letter-opening (1:1–2) conforms to the style of the Jewish and early Christian letter. An introductory statement of theme (1:3–11) and an explanation of the occasion for the letter (1:12–15) follow. As in many NT letters,
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