Nicene and Post-Nicene Fathers: Series II/Volume XI/John Cassian/Conferences of John Cassian, Part I/Conference V/Chapter 17

Chapter XVII.

A question with regard to the comparison of seven nations with eight faults.

that there are eight faults which assault us, when Moses reckons the nations opposed to the people of Israel as seven, and how is it well for us to take possession of the territory of our faults?
 * How then is it