The Ethiopian Bible is the world's oldest and most complete bible, containing several rejected biblical texts.
One of these was the book of Enoch, which was rejected because it included prophecies about Christ.
The book of Enoch is divided into three sections: the Ethiopic book of Enoch, the secrets of Enoch (slavonic Enoch), and the apocryphal book of Enoch.

The book contains firsthand knowledge of the origins of demons and Nephilim, the reasoning behind some fallen angels' actions, the ethical necessity of the Genesis flood, Enoch's insights, visions, and dreams to heaven, Enoch's ascension through the ten heavens and his rebirth as the angel Metatron, descriptions of the ten heavens, accounts of battles between angels and demons, and a prophetic exposition of the flood.