August 13th - XIII Sunday after Pentecost

The thirteenth Sunday after Pentecost is of semi-double rite. This year it is the third Sunday of August and the Sunday within the Octave of St. Lawrence. The liturgical colour is red.

At Vespers yesterday afternoon the antiphons Laurentius ingressus est etc were sung with psalms 109, 110, 111, 112 & 115. From the chapter, O Altitudo, the Office was of the Sunday with the Office hymn O lux beata Trinitas. The antiphon on the Magnificat was Omnis sapientia for the Saturday before the third Sunday of August. After the collect of the Sunday commemorations were sung of the Octave of St. Lawrence and of SS Hippolytus and Cassian. The Suffrages were omitted due to the Octave as were the Dominical preces at Compline.

At Mattins the invitatory is Adoremus Dominum and the Office hymn Nocte surgentes. In the first nocturn (Pss. 1, 2, 3, 6, 7, 8, 9, 10, 11, 12, 13 & 14) are sung. The lessons are the Incipit of the Book of Wisdom. The first lesson is longer than the form given in the modern editions. It continues Spiritus enim ... superveniente iniquitate. The second lesson begins Benignus est enim and continues until quod mentitur occidit animam - what is now the end of third lesson. The text of the third lesson is not found in the modern editions Nolite zelare ...qui sunt ex parte illius, vv. 12-16. In the second nocturn (Pss. 15, 16 & 17) the lessons are from St. Ambrose. Lessons IV and V are substantially longer than those in the modern books with additional text not appearing in the modern editions, lesson VI is longer by a sentence. In the third nocturn (Pss. 18, 19 & 20) the homily is taken from St. Augustine on St. Luke's Gospel. These lessons are longer than those found in modern editions with lessons seven and eight comprising of the complete text of the three third nocturn lessons found in the later editions. The text of the ninth lesson is absent from the post-Clementine editions. Today the eighth and ninth lessons are read together to form an extended eighth lesson of the day and the ninth lesson is of SS Hippolytus & Cassian. The Te Deum is sung.

At Lauds the Dominical psalms (Pss. 92, 99, 62-66, Benedicite & 148-149-150) are sung. The Office hymn is Ecce jam noctis. After the collect of the Sunday commemorations of the Octave and of SS Hippolytus & Cassian are sung. The Suffrages are omitted.

At Prime (Pss. 53, 117, 118i & 118ii) Quicumque is sung but the Dominical preces are omitted.

Mass is sung after Terce. The Gloria is sung, the second collect is of the Octave, the third collect is of SS Hippolytus & Cassian. The Credo and the common preface are sung.

Vespers are of the Sunday with psalms 109, 110, 111, 112 & 113. The Office hymn is Lucis creator. After the collect of the Sunday commemorations were sung of the Octave of St. Lawrence and of St. Eusebius. The Suffrages are omitted due to the Octave as are the Dominical preces at Compline.

Art: Jerome Nadal