So………….Is it still a sin to miss Mass on Sunday?
Well, the short answer is “YES!” Article # 2181 of The Catechism of the Catholic Church (CCC) says: “It is certainly a grave sin if it is missed intentionally with no reason.”
Article #2192 says: “ Sunday……….is to be observed as the foremost holy day of obligation in the universal church.” Cannon Law says in cannon 1247 : On Sundays and Holy Days of Obligation the faithful are bound to participate in the Mass.”
It can be a MORTAL SIN depending on your intention for missing Mass. That’s a serious matter. Missing Mass on Sunday should always be done with a heavy heart and with regret. The First Precept of the Church is: “You shall attend Mass on Sundays and Holy Days of Obligation.” (CCC article # 2042) So it seems pretty clear that we need to be here. But actually, if you’re reading this you have most likely been to Mass and received Holy Communion. It might be a good idea to pass this information on to those who may not have been here in awhile and invite them to attend with you reminding them that they are always welcome and that it’s not just a requirement to being Catholic, it’s an invitation directly from a loving God to share in the Holy Feast. Recall how you felt when someone rejected your invitation to join you for a meal. Pope John Paul II said something similar to this: If everyone believed that Jesus is present in the Mass and in our tabernacles, the churches everywhere would be filled 24/7.