Saint Gregory's Commentary on Job, sometimes called "An Extensive Consideration of Moral Questions," was written between 578 and 595. It is Gregory's major work, filling some 35 books or 6 volumes, making perhaps the single largest surviving patristic work. In his work he both comments on the book of Job and draws moral lessons from it. Pope Gregory is considered a saint in both the Eastern Orthodox church and in the West in the Catholic church and some Protestant churches.