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EricFilmer
Guest
Here is the process of selecting and using the invitatory (in the 4-Volume LOTH), so hopefully this will address your questions herein at some point.
- Today is the feast day of St. Benedict. We first turn to the Proper of Saints to see what sort of material is specifically designated for this day (i.e., page 1527 - 1530 of LOTH, Vol. 3).
- No invitatory antiphon is designated for this specific feast day in the Proper of Saints. Because the ranking of this holy day is a memorial, we can use either the invitatory antiphon for the weekday or from the Commons (the rubric for this general rule is on page 649). In terms of today, this means that our first option is to use the invitatory antiphon for Wednesday of Week 2 on page 891. For our second option, the Proper of Saints tells us which Common to use, and for the memorial of St. Benedict, the rubric at the top of page 1528 tells us to use the invitatory antiphon from the Common of Holy Men: Religious, which is on page 1858 (actually there are two such antiphons provided on this page to choose from).
- The first office prayed each day is either the Office of Readings or Morning Prayer (it’s up to you). You begin with “Lord, open my lips, and my mouth shall declare your praise” (as stated on page 649). You then recite whichever invitatory antiphon you chose, and then the invitatory psalm you want to use that day. You conclude the psalm with the Doxology (“Glory to the Father…”) and then repeat the invitatory antiphon.
- The invitatory acts as a prelude to the office that follows it (either OR or MP). Therefore, the introduction for the next office is omitted. All this means is that you do not recite, “God come to my assistance, Lord make haste to help me. Glory to the Father…” for whichever office you chose to follow the invitatory. If you sing the hymn with OR / MP, then this takes place immediately after you have repeated the invitatory antiphon (after the conclusion of the invitatory psalm & the Doxology).
- The rest of OR / MP goes as normal at this point. In other words, you still recite Antiphon 1 and the first psalm once the hymn is concluded. If you don’t sing hymns when you pray the LOTH then after you repeat the invitatory antiphon you immediately recite Antiphon 1 of OR or MP (depending on which one you start the day with). In terms of today, this means that you still recite OR’s antiphon 1 on page 892 (“We groan in pain…”) or MP’s antiphon 1 on page 897 (“O God, all your ways are holy…”).
- As a final clarification, the invitatory and its antiphon only replace the introduction of the first office of the day (i.e., they replace “O God, come to my assistance…” & the Doxology which comes after it: “Glory to the Father…”). The invitatory and its antiphon do not replace any of the antiphons contained in OR / MP.