Ember Saturday in the Octave of Pentecost is of semi-double rite and the last of the summer Quarter-Tense days. The liturgical colour is the red of the Octave.
The Office is as on the feast, except for those parts that are proper, but the antiphons at Mattins and Lauds are not doubled. At Mattins the invitatory, hymn, antiphons and psalms are those that were sung on the feast of Pentecost. The versicle and response are Repleti sunt omnes Spiritu Sancto, alleluia and Et coeperunt loqui, alleluia. The lessons of the homily are taken from the writings of St. Ambrose on St. Luke's Gospel. At Lauds the antiphon on the Benedictus and collect are proper to the day. After the collect of the day a commemoration is of SS Marcellinus and his Companions.
At the Hours all is celebrated as on Pentecost Sunday. At Terce the hymn is Veni Creator. The Pentecost Doxology is sung at the conclusion of hymns of the Hours.
Mass is sung after None, as on the Ember Days this week. The Mass is proper with the introit Caritas Dei etc. After the Kyrie there are a series of five structural units comprising of the invitation Oremus, followed by a collect, O.T. reading and Alleluia. The readings are from Joel, Leviticus, Deuteronomy, Leviticus again and Daniel. After the pericope from Daniel the Alleluia is a fragment of the hymn of the Three Men in the fiery furnace, Alleluia, Benedictus es, Domine, Deus patrum nostrorum et laudabilis in saecula. The the Gloria is sung followed by the collect Deus, qui tribus pueris. After this collect a commemoration is sung of St. Ephrem and SS Mark and Marcellinus. The sequence Veni Sancte Spiritus is sung but without Alleluia at its conclusion, the Creed is sung, the preface, Hanc igitur and communicantes are of Pentecost.
After Mass has been sung the Office of the Octave of Pentecost and Paschaltide come to an end. At the noon bell the last Regina Caeli is sung.
In the 'liturgical books of 1962' the distinction between the rank of the feast and Monday and Tuesday with the rest of the Octave has been lost with all days being first class and excluding all commemorations. The antiphons are doubled at both the Greater and Little Hours. The Pentecost Doxology is not sung at the Little Hours. A 'mini-Mass' Ember Day is permitted whereby only one OT reading, that from Joel, is read.