Although Jude quotes Enoch as having prophesied that the Lord would come with ten thousands of his saints, it in no way reflects credibility to a work which was falsely attributed to Enoch, titled the Book of Enoch. The original authorship of such works were attributed to Jewish fables and myths and scriptures mention. At the point it was penned, midrash (an expansion of) was starting to be prominent and people really delved into genealogies, who did what, and all that. Extrapolated and filled in things as they deduced what they thought to be true. As it is scriptures (Jude- the tag which coincidentally was during the Holocaust, German for Jew), the quote is accurate that Enoch indeed did prophesy this very thing. However, midrash is not scripture as stated before. There are other works quoted in scriptures that are not the word of God like Epimedes, for example. Jude saw fit to use the example of some crept in unawares... to illustrate the point, not give credence to its validity. As far as the content of the book, more or less, one can only conjecture that the book of Enoch was to portray knowledge as people saw fit, and what the natural man knew, which as we know is not spiritual. The midrash being of Deuteronomy 33:2, stated by Moses, concerning ten thousands of his saints. A tradition passed to him by his fathers starting at Enoch. Preserved as authored by Enoch in the book of Jude. Also, being as the scriptures show that Enoch and Elijah are taken up, never seeing death, one can only surmise that they are the two end time prophets, and when you attribute a work to an end time prophet, many are led astray and follow things which they knew not. Even refusing the things which they were taught from their youth. Also, if you follow the work closely and break it down like scriptures, it falls apart, which coincidentally is the shape of it today...it is only in fragments. The word of God never passes away. Ask yourself why you are reading outside of the bible in the first place and you will find your answer.