23 February, The Holy Rule of St Benedict, Patriarch of Western Monasticism

CHAPTER XVIII. In what order the Psalms are to be said

23 Feb. 24 June. 24 Oct.

Vespers are to be sung every day with four Psalms. And let these begin from the hundred and ninth, and go on to the hundred and forty-seventh, omitting those of their number that are set apart for other Hours - that is, from the hundred and seventeenth to the hundred and twenty-seventh, the hundred and thirty-third, and the hundred and forty-second. All the rest are to be said at Vespers. And as there are three Psalms wanting, let those of the aforesaid number which are somewhat long be divided, namely the hundred and thirty-eighth, the hundred and forty-third, and the hundred and forty-fourth. But let the hundred and sixteenth, as it is short, be joined to the hundred and fifteenth. The order of the Psalms at Vespers being thus disposed, let the rest, that is, the lessons, responses, hymns, verses and canticles, be said as already laid down. At Compline the same Psalms are to be repeated every day: namely the fourth, ninetieth, and hundred and thirty-third.

The order of psalmody for the Day-Hours being now arranged, let all the remaining 25 Psalms be equally distributed among the seven Night- Offices, dividing the longer Psalms among them, and assigning twelve to each night. Above all, we recommend that if this arrangement of the Psalms be displeasing to anyone, he should, if he think fit, order it otherwise; taking care in any case that the whole Psalter of a hundred and fifty Psalms be recited every week, and always begun afresh at the Night-Office on Sunday. For those monks would shew themselves very slothful in the divine service who said in the course of a week less than the entire Psalter, with the usual canticles; since we read that our holy fathers resolutely performed in a single day what I pray we tepid monks may achieve in a whole week.