Footnote

a Some Bible scholars assert that Jude quoted an apocryphal work called the Book of Enoch, but that book is a fanciful work of uncertain origin, falsely attributed to Enoch. It contains an accurate mention of Enoch’s prophecy, but that may have been drawn from an ancient source now lost to us​—whether a written document or an oral tradition. Jude may have used the same ancient source, or he may have learned about Enoch from Jesus, who witnessed Enoch’s life course from heaven.