The Books of Enoch

2nd Book of Enoch, the Slavonic Enoch, or 2 Enoch, which is another apocryphal book, found complete only in Old Slavonic manuscripts, and it was once present in the Old Slavonic Bible. It's usually dated to the first century CE although Matthew Black in The Oxford Guide to People & Places of the Bible state that there is no manuscript "earlier than the fourteenth century BE". ~ Amazon.