I read through the Book of Enoch about 6 months ago, out of interest because it was mentioned in the book of Jude (in the Bible). I did this (out of curiosity) to see why it was not considered as inspired scripture and also so that I could answer those who had read it.
The first thing I noticed was how scrambled it was - all over the place, much like what you find in other religions or cults holy books. I tried to make sense of it but could not.
Certainly it contradicts canonical scripture, quotes heresy and is nonsense by the way it has been put together. It doesn't give you the sense of inspiration or truth that the 66 God breathed books give in the recognised Bible.
Here is one site that exposes the falseness of that Enoch book:
This article on that site highlights many things which illustrate that the Book of Enoch is a fake. This is an excerpt from that page, which I agree with:
"As you read the Book of Enoch, you will notice
a big difference between it and the genuine Word of God. The Bible is readable, from cover to cover, it tells a story. In sharp contrast, the Book of Enoch appears to be mocking the Word of God, quoting phrases here-and-there from the Bible, without any meaningful logic or order. This, coupled with a bunch of added mumbo-jumbo, makes the Book of Enoch a ridiculous piece of literature to even consider inspired by God. As a person progresses deeper into the Book of Enoch, they will eventually find the Books of Adam and Eve fascinating as well, and then they will be into New Age occultism without even realizing it. Don't be fooled friend, the Book of Enoch is occult material that will lead you into the senseless mysticism of pagan religion. The fact that it's being paraded to the public nowadays on Walt Disney's History Station as a SHOCKING revelation, should be a clear warning sign where this is all headed. The credibility of the Word of God is under malicious attack."
By the way, I do not endorse that site in its entirety, because the author has written other articles I cannot agree with, on other subjects. However, his material on this subject is well thought out. I will (in due course - as I find them) add other links which are more reputable, maybe replacing this one above.
The falseness of Enoch is also backed up by a sound reputable site:
Let us remember that Enoch WAS rejected as a canonical book. It is NOT inspired by the Holy Spirit. It is just a lot of ramblings. Jude quoted from it because there was just ONE passage which was considered inspired. Nowhere else in the whole Bible are any other verses from Enoch quoted.
As Jude quoted a few verses from it then we also can use that section but be wary not to trust those ramblings and use it to justify views on fallen angels, spirits in prison and the Nephilim or any other subject.
To be noted: Enoch is not considered the author of that book, by the way. It is quite obvious that one statement of Enoch was used as a quote in this book, in the attempt to endorse everything else in the book.
We should compare scripture with scripture (ie the inspired writings as contained within the canonical books). This also applies to the apocrapha writings which are NOT inspired and NOT canonical.
We should NEVER include within our theology teachings from those external books. In fact (as I understand it) much of the false teachings within the Catholic church are based on those external books including the apocrypha. Let us NOT become like them introducing external heresies but STICK to 66 inspired books of the Bible and encourage everybody to read those books alone as they are everything we need for our salvation, faith and journey.
Please see the comments section for some excellent extra material. "Expected Imminently" wrote using material from "blue letter bible" website showing the context of why Jude quoted a very small portion from the book of Enoch. For an excellent overview of Jude and what it says about book of Enoch, please click on this shortcut link: http://www.blueletterbible.org/commentaries/comm_view.cfm?AuthorID=9&contentID=92&commInfo=2&topic=Jude&ar=Jud_1_14
Edited 31 Jan 2011
Please click on these 2 links for more reputed sources showing why book of Enoch cannot be trusted.