The Rule of St. Benedict - Chapter 13. The Celebration Of Lauds On Ordinary Days

(1) On ordinary weekdays, Lauds are celebrated as follows:
(2) First, psalm 66 is said without a refrain and slightly protracted as on Sunday so that everyone can be present for Psalm 50, which has a refrain.
(3) Next, according to custom two more psalms are said in the following order:
(4) on Monday, Psalms 5 and 35;
(5) on Tuesday, Psalm 42 and 56;
(6) on Wednesday, Psalms 63 and 64
(7) on Thursday, Psalms 87 and 89;
(8) on Friday, Psalms 75 and 91;
(9) on Saturday, Psalm 142 and the Canticle from Deuteronomy, divided into two sections, with "Glory be to the Father" after each section.
(10) On other days, however, a Canticle from the Prophets is said, according to the practice of the Roman Church.
(11) Next follow Psalms 148 through 150, a reading from the Apostle recited by heart, a responsory, an Ambrosian hymn, a versicle, the Gospel Canticle, the litany and the conclusion.

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