This will probably be my final reply. First off, there are two patriarchs by the name of Enoch. In Jude 14, Enoch was the seventh from Adam. The other Enoch was the third from Adam. I assume you have been referencing the Enoch mentioned by Jude.
As I assume you know, Jude spoke of one of Enoch's prophesies. It is not accurate to claim that Jude quoted from the "Book of Enoch." He quoted from the prophet himself. Absolutely nothing is said about the "Book of Enoch" by Jude. To claim so is pure supposition. Here is that prophecy:
"Behold, the Lord came with ten thousands of His holy ones, to execute judgment on all and to convict all the ungodly of all their deeds of ungodliness they have committed in such an ungodly way, and of all the harsh things ungodly sinners have spoken against Him."
I looked up Adam Clarke's comments on this prophecy. Clarke was born in 1762 and died about 70 years later, shortly after he completed his Commentary Of The Entire Bible. He was both a Hebrew and Greek scholar. Here is what he says on the Jude passage. Italics are his own.
"Of the book of Enoch, from which this prophecy is thought to have been taken, much has been said; but as the work is apocryphal, and of no authority, I shall not burden my page with extracts."
I have also done some additional research on the passage in Jude, and I hereby offer a quote and commentary from B. W. Johnson, Author of "A Vision Of The Ages."
"This prophecy of the holiest man of the antediluvian world might have been preserved by tradition. It is found in the Book of Enoch, a work long lost, but recovered in modern times in Abyssinia, supposed to have been composed the century before Christ." [Italics mine.]
My conclusion: I have no objection to the affirmation that Enoch is named, mentioned, and alluded to by various writers of our divine scriptures [Genesis through Revelation]. My opposition is when Enoch's prophecy is attributed to a "Book" he is alleged to have written.
That has not been and cannot be absolutely authenticated. And that has been my argument all along. To attribute this prophecy to the "Book of Enoch" is about the same as my attributing a statement from Eve as being from the "Book of Eve."