The same basic scheme for reading the Bible in worship is followed by Roman Catholic, Anglican, Lutheran, Methodist and other Reformed Churches. There is a three-year cycle of scripture readings, Sunday by Sunday. We moved to Year C on Advent Sunday, 2 December 2018.
The Roman Catholic Church uses the Roman Lectionary (RL). The passages for the forthcoming Sunday may be accessed through the Catholic Ireland website.
The Church of Ireland uses the Revised Common Lectionary (RCL). RCL is very similar to RL: the three-year reading plan is the same; the liturgical calendar is virtually the same; the Gospel readings are almost always the same, as are the selections for second readings. The only major difference is in the choice of Old Testament readings after Pentecost.
The appointed psalm each Sunday relates to and is a prayerful reflection on the Old Testament reading that precedes it. Psalms are an integral element of historic Christian worship and are an important link with Judaistic worship. The Book of Common Prayer states that they are ‘vital components’ of worship. Psalms should be used regularly. To omit them is to disregard and set aside a significant part of our worship DNA. A better-known or shorter psalm may be substituted for what is appointed in the lectionary. The psalms may be used in a number of ways. There are suggestions on page 592 of the Book of Common Prayer (BCP).
The text of the psalms and readings may be found on many websites.
The worship section on the Church of Ireland website provides the texts of the readings for each Sunday; also the Sunday Collects and Post-Communion prayers, and the readings and collects for saints’ and other holy days.