<P> Finally, a new revision was made by Pope Paul VI with his Apostolic Constitution Laudis Canticum of 1 November 1970 . </P> <P> Many of the complicated rubrics (or instructions) that had governed recitation of the Liturgy were clarified, and the actual method of praying the office was made simpler . Prime had already been abolished by the Second Vatican Council . Of the three intermediate Hours of Terce, Sext and None, only one was to be of strict obligation . Recitation of the psalms and a much increased number of canticles was spread over four weeks instead of one . "Three psalms (58, 83, and 109) have been omitted from the psalter cycle because of their curses; in the same way, some verses have been omitted from certain psalms, as noted at the head of each . The reason for the omission is a certain psychological difficulty, even though the psalms of imprecation are in fact used as prayer in the New Testament, for example, Rv 6: 10, and in no sense to encourage the use of curses ." </P> <P> Two typical editions for celebrating the revised Liturgy of the Hours (Liturgia Horarum) according to the Roman Rite have been published by Rome . The current typical edition for the Ordinary Form of the Roman Rite is the Liturgia Horarum, editio typica altera, promulgated in 1985 (printed between 1985 and 1987, and reprinted in 2000). This uses the Nova Vulgata Latin Bible for the readings, psalms and canticles rather than the Clementina . </P> <P> It has changed some of the readings and responsories according to the Nova Vulgata, and it provided for the Benedictus and Magnificat on Sundays with three antiphons each that reflect the three - year cycle of Gospel readings . Pope Urban VIII's lamented alterations of the hymns are undone . Verse numberings are added to the Psalms and the longer Scripture readings, while the Psalms are given both the Septuagint numbering and (in parentheses) that of the Masoretic text . And new texts, taken from the Missale Romanum, have been added in the appendix for solemn blessings and the penitential acts . </P>

When are the liturgy of the hours prayed