Those who recite the office in choir are bound by the rubrics concerning kneeling, sitting, standing, etc. Secondly, they are bound to observe the rules of the liturgy, especially the rule as to the stop in each verse at the asterisk mark. Thirdly, they are bound to recite clearly and distinctly; but even if they cannot hear distinctly the alternate choir, or even if they recite in a low voice, they fulfil the obligation of recitation; and canons are bound at Cathedral offices to sing and chant or to lose their manual distributions and the fruits of their prebends. If a person reciting his office with a companion or in a choir does not understand the words recited by his companion or by the choir, he is not bound at the end to repeat the part which he did not understand, because such a person has the intention of offering prayer and praise to God, and that intention suffices. Moreover, the Church's precept of reciting the office should he interpreted benignly, otherwise it must give rise to many scruples; for, companions in recitation, then, always, should be anxious as to the duty of repetition or the non-fulfilled duty of complete recitation.

Pronunciation of the words of the office should be integral. That is, the words and syllables are to be repeated fully without mutilation or abbreviation. Hence, if mutilation of the words occur to such an extent that the sense or meaning of the words is notably changed, mortal sin may be committed. But if the mutilation be small in quantity there is only a venial sin committed, and often no sin at all may be committed, as the mutilation of words or syllables may be quite involuntary, or may be done inadvertently, or may arise from an inveterate habit very difficult to correct, and in the attempt to cure it time and patience may have been spent (St. Alph., 164-165). This bad habit, if it extend over a large portion of the recitation and destroy notably the sense of the words, may bind sub gravi to repetition, as this fault or habit affects the very substance of recitation. Priests seldom are bound to such a repetition, as the mutilation is not destructive to the sense of a notable part of the office and hence does not affect the substance of the obligation to vocal recital. St. Alphonsus holds (n. 165), that the obligation is fulfilled as long as the meaning is not destroyed, quando servatur aliqua significatio verborum.

Pronunciation should be continuous. That is, the recitation of each hour should be continuous, non-interrupted, and every notable stoppage or break in the recitation of a canonical hour is a venial sin, if there be no excusing cause for such an interruption. Any reasonable cause for interruption (e.g., to obey a bell call, to see a parishioner who calls, to hear a confession) excuses from all fault (St. Alph., n. 168).

If the recital of the office for any canonical hour be interrupted, should the whole hour be repeated? Some theologians say that it should be repeated. But the more probable opinion denies that there is any such obligation; it holds that the union of the prayers prescribed by the Church is not broken, as each psalm, each lesson, each prayer, has a complete signification and they are united sufficiently in one round of prayer by the intention formed of continuing the Hour, or even by the actual continuation. Gury states that a priest interrupting the office between the verses of a psalm is not bound to repeat the entire psalm on resuming the recitation, as he says each verse has its own signification.

May Matins be said separately from Lauds without any excusing cause? Yes, for it was the practice of the early Church to say these parts of the liturgy at times separated by intervals. But if Matins be said separately, without Lauds following immediately. Pater Noster with Dominus Vobiscum and the prayer of the day should be said at the end of the Te Deum, If Lauds follow Matins immediately the Pater and Ave should not be said, for the Congregation (same decree) says "Laudes incohandas ut in Psalterio," but in the Psalter the Pater and Ave are not assigned for the beginning of Lauds.

A notable time may elapse between the nocturns of Matins without any excusing cause. In the early Church intervals occurred between each nocturn. Some authors state that an interval of three hours between two nocturns is quite lawful, even when there be no cause for the delay. With a reasonable cause the interval may last as long as the excusing cause requires.

ARTICLE VI.—INTENTION AND ATTENTION.

The valid recitation of the Divine Office requires that the priest should have in his mind an intention of praying, for the Divine Office is a true and real prayer, not a mere vocal exercise. Hence, a priest reading his office as a mere study or as a means of remembering the words of the psalms does not validly recite his office (St. Alph., n. 176). Now, what sort of intention is best and what sort of intention is necessary? An actual, explicit intention which states expressly when the Breviary is opened, "I intend to pray," is the best intention. The devout recital of the prayer "Aperi Domine" expresses well the best form of the actual, explicit intentions of those reciting the office. But such an express, actual intention is not necessary; a virtual intention, which finds expression in the opening of the Breviary to recite the office, suffices. The mere opening of the book, the finding out of the office, the arrangement of the book markers, are ample evidence of the existence of a virtual intention quite sufficient for the valid recitation of the office. St. Alphonsus writes, "Imo puto semper adesse exercite, intentionem actualem implendi officium" (n. 176). This question of intention gives great trouble to the timid and scrupulous, whose doubts and difficulties seem hard to solve. The common sense and common practice in everyday affairs seem to desert some people when they prepare to read the canonical hours. For, who has not seen the nervous, pious, anxious cleric, stupidly labouring to acquire even a sufficient intention before beginning his hours?

Attention in reading the hours is a much more discussed and much more difficult mental effort. It means the application of the mind to the thing in which we are engaged. When we listen to a conversation or when we write a letter the mind is fixed and attentive to the matter spoken or written. Intention is an act of the will; attention is an act of the understanding.

Attention may be either external or internal. External attention is attention of such a kind that it excludes every exterior action physically incompatible with the recitation of the office—e.g., to write or type a letter, to listen attentively to those conversing, are acts incompatible with the simultaneous recitation of the office. But walking, poking a fire, looking for the lessons, whilst reciting from memory all the time, are not incompatible with the external attention required in office recital; because such acts do not require mental effort which could count as a serious disturbing element. However, in this matter of external attention no rule can be formulated for all Breviary readers; for what may lightly disturb and distract one reader may have no effect on another, and yet may seriously disturb the recitation of another (St. Alph., n. 176). External attention is necessary for the valid recitation of the office.