15 Attending Mass For Catholics, attending Mass on Sunday (or a Saturday evening vigil Mass) is not optional. It is an obligation. The author of the Letter to the Hebrews addressed this in Hebrews 10:25 – “We should not stay away from our assembly, as is the custom of some, but encourage one another.” The Catechism of the Catholic Church in paragraph 2181 explains why. “The Sunday Eucharist is the foundation and confirmation of all Christian practice.” As Catholics, we believe that the Mass is the highest form of prayer and worship. The faithful should know that deliberately missing Mass without a serious reason is a mortal sin. This is explained in the Catechism, paragraph 2181. “For this reason the faithful are obliged to participate in the Eucharist on days of obligation, unless excused for a serious reason (for example illness, the care of infants) or dispensed by their own pastor. Those who deliberately fail in this obligation commit a grave sin.” In going to Mass on Sunday, we follow the Third Commandment to keep holy the Sabbath. For further study: CCC 2168-2195 Hebrews 10:25 Notes
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