This work investigates the textual history and theological significance of the Ethiopic Book of Enoch by reconciling the traditional Ge'ez manuscripts with the Aramaic fragments discovered among the Dead Sea Scrolls. The authors, Edward Ullendorff and M. A. Knibb, utilize their expertise in Semitic philology and ancient Near Eastern studies to provide a rigorous critical edition. By comparing the later Ethiopic translations against the older Aramaic source material, they establish a framework for understanding the evolution of Enochic literature and its transmission through various linguistic traditions.

Scholars and theologians regard this two-volume set as a foundational resource for the study of Second Temple Judaism and early Christian apocryphal texts. Readers frequently note the high level of academic density and the meticulous attention to philological detail provided by the authors.