
Holy Rule Of Saint Benedict
CHAPTER XVIII In What Order the Psalms Are to Be Said

In the beginning let there be said the verse, Deus, in adjutorium meum
intende; Domine, ad adjuvandum me festina (Ps 69[70]:2), and the
Gloria, followed by the hymn for each Hour. At Prime on Sunday, then,
there are to be said four sections of the 118th psalm. At the other
Hours, however, namely Tierce, Sext, and None, let three sections of
the same psalm be said. But at Prime on Monday let three psalms be
said, namely, the first, the second, and the sixth; and thus each day
at Prime until Sunday, let three psalms be said each time in
consecutive order up to the 19th psalm, yet so that the ninth psalm and
the 17th be each divided into two Glorias; and thus it will come about
that at the night office on Sundays we always begin with the 20th
psalm.
At Tierce, Sext, and None, on Monday, however, let the nine sections
which remain over the 118th psalm be said, three sections at each of
these Hours. The 118th psalm having thus been parceled out for two
days, namely, Sunday and Monday, let there be sung on Tuesday for
Tierce, Sext, and None, three psalms each, from the 119th to the 127th,
that is, nine psalms. These psalms will always be repeated at the same
Hours in just the same way until Sunday, observing also for all these
days a regular succession of the hymns, the lessons, and the verses,
so, namely, that on Sunday the beginning is always made with the 118th
psalm.
Let Vespers be sung daily with the singing of four psalms. Let these
psalms begin with the 109th to the 147th, excepting those which are set
aside for the other Hours; namely, from the 117th to the 127th, and the
133d, and the 142d. All the rest are to be said at Vespers; and as the
psalms fall three short, those of the aforesaide psalms which are found
to be longer, are to be divided; namely, the 138th, the 143d, and the
144th. But because the 116th is short, let it be joined to the 115th.
The order of the psalms for Vespers having thus been arranged let the
rest, namely, the lessons, the responsories, the hymns, the verses, and
the canticles, be said as we have directed above.
At Complin, however, let the same psalms be repeated every day; namely,
the 4th, the 90th, and the 133d.
Having arranged the order of the office, let all the rest of the psalms
which remain over, be divided equally into seven night offices, by so
dividing such of them as are of greater length that twelve fall to each
night. We especially impress this, that, if this distribution of the
psalms should perchance displease anyone, he arrange them if he
thinketh another better, by all means seeing to it that the whole
Psalter of one hundred and fifty psalms be said every week, and that it
always start again from the beginning at Matins on Sunday; because
those monks show too lax a service in their devotion who in the course
of a week chant less than the whole Psalter with is customary
canticles; since we read, that our holy forefathers promptly fulfilled
in one day what we lukewarm monks should, please God, perform at least
in a week.
