In most masses on Sunday there are four readings:
First Reading - From the Old Testament
Psalm - verse from the Psalms of The Bible, often sung
Second Reading - From the old testament
Gospel - New Testament.
Most weekday masses do not include the second reading.
The readings are already picked out by the Church. They change every 3 years on Sunday (A,B,C) and are always the same. On weekdays, they are on a two year cycle (I,II).
Called "cycles" of the liturgical year, these rotate to a new letter (A, B or C) each calendar year at the First Sunday in Advent. Each years cycle has different readings from the Bible.
In 2018, the Catholic Church was in Cycle B of the Lectionary for Sunday readings. This cycle primarily features the Gospel of Mark, with selections from the Gospel of John during certain liturgical seasons, such as Lent and Easter. The weekday readings followed Year II of the two-year cycle, which includes a mix of readings from the Old and New Testaments.
Answer:The Catholic Church.
.Catholic AnswerThe last Sunday of the liturigical year is the Feast of Christ the King.
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Pentecost Sunday in about the year 33 AD. is considered the birthday of the Catholic Church.
Neither the Catholic church nor Christianity at large consider Sunday to be the Sabbath. Differing denominations have differing views on why we have church gatherings on Sundays, but we don't do it out of a mistaken view on the Sabbath.
They use a lectionary, like many Protestant Churches. The Sunday Mass Readings repeat every three years; the daily Mass readings repeat every two. This way the entire New Testament is read yearly, and most of the Old Testament every two.
In the Catholic liturgical year, the Gospel readings follow a three-year cycle known as Year A, Year B, and Year C. As of the 2023-2024 liturgical year, the Church is in Year A, which primarily focuses on the Gospel of Matthew. This cycle influences the readings during Sunday Mass and significant liturgical celebrations throughout the year.
According to Catholic beliefs, it is not a sin to go to a restaurant on Sunday. The Catholic Church teaches that Sunday is a day of rest and worship, but it does not prohibit going to a restaurant on that day.
Perhaps they do not know what the church is! My church meets every Sunday, including Christmas. Christmas was not practiced in the early church but was developed in and for the Roman Catholic Church.