The following is taken from Eusebius’ Church History, Book III. All emphasis will be mine.
Chapter 3. The Epistles of the Apostles.
- One epistle of Peter, that called the first, is acknowledged as genuine. And this the ancient elders used freely in their own writings as an undisputed work. But we have learned that his extant second Epistle does not belong to the canon; yet, as it has…