But the end of all things is near. Therefore be of sound mind, self-controlled, and sober in prayer.
Those events, and many others, justify fully Peter's blunt prophecy.  Peter himself was a Jew; and, in view of the above events, which he accurately understood as having been prophesied by Jesus, and which he accurately foresaw as being so soon to be fulfilled and executed upon that generation, it was quite proper and accurate for him to refer to them prophetically as "the end of all things."  The destruction of Jerusalem in A.D. 70, only five years after our epistle, was the greatest single event of a thousand years, and religiously significant beyond anything else that ever occurred in human history.  "End of all things?"  It was indeed that to anyone who contemplated the significance of it, and especially to a Jew like Peter.