The biblical book of Jude quotes from the Book of Enoch in verses 14 15, “Enoch, the seventh from Adam, prophesied about these men: ‘See, the Lord is coming .The Book of Enoch is an ancient Jewish religious work, ascribed by tradition to Enoch, the great- grandfather of Noah

Apocrypha are works, usually written works, that are of unknown authorship, or of doubtful origin. In the context of the Jewish and Christian Bibles, where some texts are of unknown authorship, Apocrypha usually is used by Protestants to refer to a set of texts included in the Septuagint and therefore included in the Catholic canon, but not in the Hebrew Bible. The word’s origin is the Medieval Latin adjective apocryphus, “secret, or non-canonical”, from the Greek adjective ἀπόκρυφος (apokryphos), “obscure”, from the verb ἀποκρύπτειν (apokryptein), “to hide away”. “We have found this information to be very important to us.  It deals with Prophecy that pertains to the seed of Jacob’s People. You will know what will become of Jacob’s Children dealing with Esau’s Descendants.” 2 Esdras chapter 6:8.9