Jude referred to the “…faith once for all delivered to the saints.”
I have a question that is think is related to this topic, and that is that some scripture (the writings of John and the book of Revelation in particular), was produced long after all the other apostles were dead.
This means that the content of Revelation was unknown to the other apostles, such as Peter and Paul, who died 30 years before Revelation was written. So, did they have an incomplete knowledge of the faith?
But how could they, if “The faith was once for all delivered to the saints,” a statement written before the book of Revelation.
And, if the faith was once for all delivered, as according to Jude, subsequent scriptures cannot represent essential additions but perhaps clarifications and encouragements to Christians.
However, a number of prophetical religious groups, (Jehovah’s Witnesses, Seventh Day Adventists, the “Left Behind” books, et al, make the book of Revelation a prime source of doctrine and teachings. There are so many “prophecy seminars” based upon Revelation. However, their very assumptions about what the book is about may be faulty, especially in view of the fact it was late in being accepted into the canon.
So, are beliefs based on Revelation such as “the Millenium,” or the 1000-year reign" essential such as prophecy groups insist?