The Third Book of Enoch (Hebrew: ספר חנוך לר׳ ישמעאל כ׳׳ג‬‬‎, abbreviated as 3 Enoch) is a Biblical apocryphal book in Hebrew. 3 Enoch purports to have been written in the 2nd century, but its origins can only be traced to the 5th century. Other names for 3 Enoch include The Book of the Palaces, The Book of Rabbi Ishmael the High Priest and The Revelation of Metatron. Most commonly, the Book of Enoch refers to 1 Enoch, which survived completely only in Ge'ez. There is also a Second Book of Enoch, which has survived only in Old Slavonic, although Coptic fragments were also identified in 2009.