The Book of Enoch (also 1 Enoch; Ge'ez: መጽሐፈ ሄኖክ mätṣḥäfä henok) is an ancient Jewish religious work, ascribed by tradition to Enoch, the great-grandfather of Noah, although modern scholars estimate the older sections (mainly in the Book of the Watchers) to date from about 300 BC, and the latest part (Book of Parables) probably to the first century BC.