"The early Christian theologian Origen preached this series of nine homilies on the Old Testament book of Isaiah between the years 245 and 248 in the city of Caesarea in Roman-occupied Palestine. In these homilies Origen utilizes his characteristic approach to exegesis by providing interpretations on three levels: literal, moral, and allegorical. His main theme is that Christian believers must progress in their own moral cleansing and in achieving...