Dear Father Deacon Edward,
Yes, you are right on!
In fact, St Paul mentions the tradition, found NOWHERE in any scriptures, canonical, deuterocanonical, apocryphal etc. of the battle of St Michael with the devil over the body of Moses! Yet, he accepts this oral tradition as a matter of fact.
Our Lord mentions the "seat of Moses" which is also a tradition that developed within Judaism that is outside the scriptures. He does not attack this tradition, only those who abuse what it represented.
For me, one of the most telling references that shows how the early Christians not only knew the orthodox writings that never made it into the final canon of Holy Scripture, but were EXPECTED to know them to provide the necessary context and continuity of the New Testament is contained in the first chapter of John's Gospel beginning at verse 45 when Philip found Nathanel.
In verse 47, we read: Jesus saw Nathanael coming to him and he saith of him: Behold an Israelite indeed in whom there is no guile. Nathaniel saith to him: Whence knowest thou me? Jesus answered and said to him: Before that Philip called thee, when thou wast under the fig tree, I saw thee. Nathanael answered him and said, Rabbi, thou art the Son of God, thou art the king of Israel!" (Douay-Rheims Version).
Now, I've always wondered why Nathanael seems to make such a "fuss" over what appears to be a minor thing - Christ seeing him under a fig tree.
Would this occasion such a confession of faith in Jesus that Nathanael made?
In fact, the "fig tree" that is being mentioned is a reference to a meeting of Jesus and Nathanael that occurred when they were yet children . . .
This is recorded, I believe in either the Birth of Mary or the Gospel of Nicodemus (both orthodox books that did not form part of the final canon of the New Testament, but I believe they are part of the New Testament deuterocanonicals of the Assyrian Church of the East and of the Ethiopian Orthodox Church).
As I remember it, when Mary and Joseph took the Baby Jesus away from Herod, they came upon a chance meeting with Nathanael's mother. A deadly disease had already claimed the life of one of her sons and the baby Nathanael was slowly dying from it.
Mary, who had obviously witnessed the miraculous power of her Baby, quickly urged Nathanael's mother to place her son on the bed-clothes of her Son - and this happened to be under a fig tree.
When this happened, Nathanael's disease and fever immediately left him and he was perfectly healthy!
When, in the Gospel of John, our Lord Jesus makes this reference to the tree, He is actually making reference to His own miraculous healing of Nathanael so many years before when they were both babies.
Nathanael knew about this very well and he knew that only a small circle of people knew about his miraculous healing, involving his mother and Mary and . . . the Baby Who was the Miracle-worker.
When Christ mentioned this, Nathanael knew right away that he was in the Presence of the Person Who, as a baby, bore such Divine healing power that just touching His bed-clothes showered such rich Graces of healing on him, saving his life.
This is why Nathanael extolls Christ so highly and becomes His lifelong disciple and apostle.
Also, in the Celtic Church especially, the Shepherd of Hermas was always a part of the New Testament Canon of Scripture by way of "local Canon."
In the Ethiopian Orthodox Church today, the eight books of the Apostolic Constitutions are likewise a formal part of their New Testament Canon and they also include the Old Testament deuterocanonical books of Enoch and Jubilees in their "narrow canon" - their "wider OT canon" contains many others, including the Ascension of Elias etc.
The Lutherans, to be sure, had a New Testament that was divested of a number of books, including the Epistle of James which Martin Luther called, "An epistle of straw" because he saw that inspired book as contradicting his view of justification and salvation by faith "alone."
NOWHERE in the New Testament is it said that we are justified by faith "alone."
The only place where "faith alone" is mentioned is in the Epistle of James, 2:24:
Do you see that by works a man is justified and not by faith only? . . . For even as the body without the spirit is dead, so also faith without works is dead.
However, I am using a Catholic Bible. Perhaps things are different in one of the Protestant translations

).
Alex