The Twelve Books of John Cassian

 Book I.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Of the modification in the observances which may be permitted in accordance with the character of the climate or the custom of the district.

 Chapter XI.

 Book II.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Book III.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Book IV.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Chapter XXIII.

 Chapter XXIV.

 Chapter XXV.

 Chapter XXVI.

 Chapter XXVII.

 Chapter XXVIII.

 Chapter XXIX.

 Chapter XXX.

 Chapter XXXI.

 Chapter XXXII.

 Chapter XXXIII.

 Chapter XXXIV.

 Chapter XXXV.

 Chapter XXXVI.

 Chapter XXXVII.

 Chapter XXXVIII.

 Chapter XXXIX.

 Chapter XL.

 Chapter XLI.

 Chapter XLII.

 Chapter XLIII.

 Book V.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Chapter XXIII.

 Chapter XXIV.

 Chapter XXV.

 Chapter XXVI.

 Chapter XXVII.

 Chapter XXVIII.

 Chapter XXIX.

 Chapter XXX.

 Chapter XXXI.

 Chapter XXXII.

 Chapter XXXIII.

 Chapter XXXIV.

 Chapter XXXV.

 Chapter XXXVI.

 Chapter XXXVII.

 Chapter XXXVIII.

 Chapter XXXIX.

 Chapter XL.

 Chapter XLI.

 Book VI.

 Book VII.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Chapter XXIII.

 Chapter XXIV.

 Chapter XXV.

 Chapter XXVI.

 Chapter XXVII.

 Chapter XXVIII.

 Chapter XXIX.

 Chapter XXX.

 Chapter XXXI.

 Book VIII.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Book IX.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Book X.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Chapter XXIII.

 Chapter XXIV.

 Chapter XXV.

 Book XI.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Book XII.

 Chapter I.

 Chapter II.

 Chapter III.

 Chapter IV.

 Chapter V.

 Chapter VI.

 Chapter VII.

 Chapter VIII.

 Chapter IX.

 Chapter X.

 Chapter XI.

 Chapter XII.

 Chapter XIII.

 Chapter XIV.

 Chapter XV.

 Chapter XVI.

 Chapter XVII.

 Chapter XVIII.

 Chapter XIX.

 Chapter XX.

 Chapter XXI.

 Chapter XXII.

 Chapter XXIII.

 Chapter XXIV.

 Chapter XXV.

 Chapter XXVI.

 Chapter XXVII.

 Chapter XXVIII.

 Chapter XXIX.

 Chapter XXX.

 Chapter XXXI.

 Chapter XXXII.

 Chapter XXXIII.

Chapter XVII.

How he who rouses them for prayer ought to call them at the usual time.

But he who has been entrusted with the office of summoning the religious assembly and with the care of the service should not presume to rouse the brethren for their daily vigils irregularly, as he pleases, or as he may wake up in the night, or as the accident of his own sleep or sleeplessness may incline him. But, although daily habit may constrain him to wake at the usual hour, yet by often and anxiously ascertaining by the course of the stars the right hour for service, he should summon them to the office of prayer, lest he be found careless in one of two ways: either if, overcome with sleep, he lets the proper hour of the night go by, or if, wanting to go to bed and impatient for his sleep, he anticipates it, and so may be thought to have secured is own repose instead of attending to the spiritual office and the rest of all the others.75 The rule of S. Benedict is similarly careful that the brethren may not oversleep themselves. See c. xi. and xlvii.