How Lauds are to celebrated on ferial or week days.
On ferial days, let Lauds be celebrated thus: Let the sixty-sixth Psalm be said as on Sunday, plainly and without an antiphon, and also somewhat more slowly, in order that all may be in their places for the fiftieth, which must be said with an antiphon. After which, let two other psalms be said according to custom; that is, on Monday, the fifth and thirty-fifth. On Tuesday, the forty-second and fifty-sixth. On Wednesday, the sixty-third and sixty-fourth. On Thursday, the eighty-seventy and eighty-ninth. On Friday, the seventy-fifth and ninety-first. On Saturday, the hundred-and-forty-second and the Canticle of Deuteronomy, which must be divided into two “Glorias.” But on other days, let the Canticle our of the Prophets be said, each on its own day, according to the practice of the Roman Church. After these, let the Praises follow; then a lesson from the Apostles, to be said by heart, a responsory, hymn, and versicle, a Canticle out of the Gospel, the Litanies, and so conclude.
Let not the celebration of Lauds, or Evensong, ever terminate, unless at the end, the Lord’s prayer be said by the Prior, in the hearing of all, because of the thorns of scandal which are wont to arise; that the Brethren, being reminded by the covenant of this prayer, in which they say: “Forgive us our trespasses as we forgive them the trespass against us”, may purge themselves from these faults. But in celebrating the other hours let the last part only be said aloud, that all may answer: “But deliver us from evil.”