From December 17 to 23, III and IV class votive and Requiem Masses are prohibited.
Mass of the 3rd Sunday of Advent; no Gloria; omit Alleluia with following verse; no Credo; common preface
N.B. – Rose vestments are not worn, even though the preceding Sunday’s Mass is used.
Matins: Invitatorium Prope est iam Dominus; Hymn Verbum supernum; ferial psalms and antiphons; no Te Deum
Lauds: Ferial psalms of the 2nd scheme; antiphons are proper (they are given in the psalter: Feria V ante Vigiliam Nativitatis Domini); Hymn En clara vox
Hours: Ferial psalms with antiphons from Lauds
Vespers: Ferial psalms and antiphons; Hymn Creator alme siderum; Magnificat O Radix Iesse (O Antiphons for Advent)
Compline: Of the feria