The book is the edition, publication and annotation of two substantial passages of a Commentary on Genesis that has been ascribed to the eighth-century Armenian theological and commentator, Bishop Step'anos of Siwnik. One passage has been previously published but never translated into English, the second passage is newly-discovered and for it the book is the editio princeps. Even if the ascription to Step'anos is not authentic, the work is an early one, and an eighth-century date is not implausible.