Lauds on Sundays should begin with the sixty-sixth psalm chanted straight through without an antiphon. After that, let the fiftieth psalm be said, with Alleluia; then the hundred and seventeenth and the sixty-second; then the Benedicite and the Laudate psalms; then a lesson from the Apocalypse to be recited by heart, the responsory, the hymn, the versicle, the canticle from the Gospel book, the Kyrie eleison, and so the end.