Reading Eight (Terce and Preparation for Mass)
When the reminder for the hour of Terce is heard, the juniors and whoever else may wish, putting their books down, shall go in the dormitory, and afterwards the priest and those who are to be the attendants shall simultaneously prepare themselves, and the juniors shall diligently gather there with the clerics in order to assist the attendants. When they are ready, the priest shall indicate the striking of the signal, to the sound of which all shall come in order. And when the Lord's Prayer is said and the stall is struck by the prior, the priest shall begin towards the end of the hour. The attendants ought to exit and wash their hands and bend their knees at the steps of the sanctuary, and similarly near the altar. When the altar has been made ready by the attendants, the deacon shall place the book on the altar; the sub-deacon shall prepare the chalice. Then, taking the text of the Gospels, they shall both go in the vestry, but the juniors shall prepare the wine and the water and those things that are necessary, and with the candleslit they shall rotate to stand in front of the vestry. At the end of the hour, the priest, exiting from the choir, shall be adorned with the chasuble with the help of the deacon; and ordered in the following manner, the juniors in front, the sub-deacon following, and after him the deacon, the priest coming last, they shall go up to the steps of the sanctuary and shall bow to the relics. And while they are coming to the altar, the deacon [shall bow] to the right, the sub-deacon to the left, they shall bow with the priest towards the altar and then in the same way in the direction of the choir. And after bowing to the altar, the priest having said the Confiteor [the Apostles' Creed] first and having granted absolution, the deacon shall go to the altar and shall prepare in advance the things, which are to be said by the priest. Then the priest having kissed the altar and the missal, the deacon and the priest shall say the office together.