Let’s look at Jude, verse 14-15, “And Enoch also, the seventh from Adam, prophesied of these, saying, Behold, the Lord cometh with ten thousands of his saints, To execute judgment upon all, and to convince all that are ungodly among them of all their ungodly deeds which they have ungodly committed, and of all their hard speeches which ungodly sinners have spoken against him.”

This prophesy of Enoch is not found in any book in the Bible, yet Jude was familiar with the words of Enoch. That does not necessarily mean that there is a book of Enoch. This prophesy of Enoch could have been common knowledge among the Lord’s people at that time. Possibly, the Lord gave Jude knowledge of this prophesy and inspired him to include it in his short but important book.

Let’s read a little about Enoch in Genesis 5:21-22, “And Enoch lived sixty and five years, and begat Methuselah: And Enoch walked with God after he begat Methuselah three hundred years, and begat sons and daughters. It is estimated that Enoch was born around 3384 BC. Since he lived 365 years before being translated to Heaven, then his lifespan upon the earth would be 3384-3019 BC.

There is a Book of Enoch, but it is not included in our Bible…and for good reason. Modern scholars estimate the older sections of the Book of Enoch (mainly in the Book of the Watchers) were written about 300 BC, and the latter part (Book of Parables) was written in the first century BC. We can easily see that if all these dates are remotely correct, Enoch could not have written the book that bears his name. It was written many, many years after his departure.

The Book of Enoch is referred to as a Pseudepigraphal book. “Pseudepigrapha” means “falsely-in-scribed.” Pseudepigraphal books were falsely attributed to some of the Old Testament prophets to give them credibility. These books are completely regarded as false and certainly not inspired of God. Jude may have known of Enoch’s prophesy by way of Jewish tradition, but more than likely was given knowledge of this prophesy by the Lord as He inspired him to write this book. (301.4)