The Jewish testament: the Testaments of the Twelve Patriarchs and the Testament of Moses
Second Temple Jewish2nd century BC to the 1st century ADThe parallel
A dying patriarch gathers his sons, recalls his own life, warns of corruption to come after his death, and leaves instructions to hold to. 2 Peter has the same shape. The writer states that his death is near, 'I know that this tent will soon be laid aside' (1:14), gives his purpose as making the teaching available afterward, 'after my departure, you will be able to recall these things at all times' (1:15), and then predicts teachers who will come (2:1) and mockers in the last days (3:3).
Read honestly
The genre is real and the resemblance is close. What it proves is exactly what the authorship difficulty is about. Those who hold the letter is Peter's take the form as the natural shape of any farewell, since a dying man really does warn and really does leave instructions. Those who hold it was written later take the form as the writer's own signal to his readers. The parallel establishes the shape of the letter, and the question of its author rests on the other evidence.

