Nicene and Post-Nicene Fathers: Series II/Volume XI/John Cassian/The Twelve Books/Book III/Chapter 1

Chapter I.

Of the services of the third, sixth, and ninth hours, which are observed in the regions of Syria.

nocturnal system of prayers and Psalms as observed throughout Egypt has been, I think, by God&#8217;s help, explained so far as our slender ability was able; and now we must speak of the services of Tierce, Sext, and None, according to the rule of the monasteries of Palestine and Mesopotamia, as we said in the Preface, and must moderate by the customs of these the perfection and inimitable rigour of the discipline of the Egyptians.