St. John the Evangelist

The feast of St. John the Apostle and Evangelist a Double of the Second Class with a simple Octave. The liturgical colour is white.

As for all days until Epiphany hymns of Iambic metre have the special Doxology and tone in honour of the Incarnation. The Office is largely taken from the Common of Apostles. Mattins has three nocturns. In the first nocturn the lessons are the Incipit of the former Epistle of St. John. In the second nocturn the writings of St. Jerome provide the lessons and in the third nocturn the homily is from St. Augustine. At Lauds the antiphons Valde honorandus est etc are sung with the Dominical psalms, a commemoration of the Octave of the Nativity of the LORD is sung.

At the Hours the same antiphons, Valde honorandus est etc., are sung. At Prime the festal psalms are sung, the lectio brevis is In medio Ecclesiae.

Mass is sung after Terce. The Gloria is sung. A second collect if of the Octave of the Nativity. The Credo is sung. The preface and communicantes are of the Nativity.

Vespers are of the Nativity but from the chapter of St. John. A commemoration of tomorrow's feast of the Holy Innocents is made and of the Octave of the Nativity.

Following the 'liturgical books of 1962' the Doxology in honour of the Incarnation is omitted in the hymns of the Little Hours. At the Little Hours the ferial psalms are sung, at Prime the lectio brevis is of the season, not of the feast. At Vespers no commemoration is made of the Holy Innocents.

Miniature of St. John from Wikipedia.