THE BOOK OF ENOCH
The Book of Enoch was considered as scripture in the Epistle of Barnabas (16:4) and by many of the early Church Fathers, such as Athenagoras, Clement of Alexandria, Irenaeus and Tertullian, who wrote c. 200 that the Book of Enoch had been rejected by the Jews because it contained prophecies pertaining to Christ.  It was, then, considered but never implemented into the Bible.

Others say that it was removed because it told stories of interplanetary travel and visits from the Sky Beings. It didnt fit the narrative the church wanted to push. The church needs you to believe you have to go through them for "salvation" and knowledge.

Others have different views on the process church fathers used. Enoch is an odd book. Its authorship is questionable, can't be traced in a direct line to the apostles, it tells strange stories more similar to the gnostic gospels, where the main problem is anyone can access a new revelation or "truth," this who needs the church if you can find your own truth. That's ok for new events, but reinterpreting past events with novel additions is where the church fathers drew the line. The Gospel of John, with its direct quotes of Jesus, is problematic enough, compared to the other gospels that drew on a consistent story line. The church fathers possibly were trying to figure out what is consistent with their understanding of God and the Hollywood version cooking in the back room, trying to make the story "better."

Still another view is that the bible was stolen from Mesopotamian stories, badly translated to Jewish, then badly translated to Latin, then badly translated to English. Nothing in it is real. The bible is just parable nothing more, people keep trying to make it a history book, its not that. The Bible was to be a history book,they turned it into a religious book! The church needs you to believe you have to go through them for "salvation" and knowledge. If you realize you don't you cut out the middle man. The Bible has a lot of real good uses. But unfortunately throughout time it's been used to manipulate people, this is just one more time.