What is it?
From the beginning, God’s people have prayed at fixed times of the day. The psalmist sings, “Seven times a day I praise thee” (Psalm 119:164), and St. Paul urges us to “pray constantly” (1 Thessalonians 5:17). The Liturgy of the Hours carries on that tradition. It is built mainly from the Psalms, with readings from Scripture, hymns, and prayers. In it, Christ Himself prays with His Body, the Church, to the Father.
The Church asks priests, deacons, and many religious to pray it daily, and warmly invites all the faithful to join, especially in Morning and Evening Prayer (Catechism 1174–1178; Sacrosanctum Concilium 100). The psalms are spread over a four-week cycle called the Psalter, and the feasts and seasons of the Church year add their own texts.
“Let my prayer be counted as incense before thee, and the lifting up of my hands as an evening sacrifice!”Psalm 141:2