I thought you were freed from sin. You equate being Catholic with sin? Yikes.
Lets ignore that dude and move on.
Why is it mortal sin, objectively speaking, to choose to stay away from Mass on Sundays or holy days of obligation? The answer is, by that decision, on that occasion, we turn our backs on Christ and on the process of our redemption. We refuse to carry out Christ’s command to “do this” for the recalling and receiving of him and his salvation.
With regard to the Eucharist, Scripture explains that “as often as you eat this bread and drink the cup, you proclaim the Lord’s death until he comes” (1 Cor. 11:26).
Why must we proclaim the Lord’s death to God the Father? Because when we proclaim the death of the Lord God the Father continues the work of our redemption. . . . For whenever this memorial sacrifice is celebrated the work of our redemption is renewed
Speaking of the will of the Father that the Son came to accomplish, Hebrews explains, “And this will was for us to be holy by the offering of his body made once for all by Jesus Christ” (Heb. 10:10).
The offering made once for all is continually repeated in our behalf by the celebration of the Eucharist, thus continuing the working-out of our redemption. “By virtue of that one single offering, he has achieved the eternal perfection of
all whom he is sanctifying.. ” Literally, “for by one offering he has perfected in perpetuity
the [ones] being sanctified” (10:14; emphasis added). Note the present progressive tense: the process of sanctifying, the process of applying the benefits of Christ’s redemption to each of us, is going on right now through the Eucharist.
Sharing in Eucharistic worship is the
primary means whereby we allow the Holy Spirit to work out our salvation in us.
The Eucharist is a true sacrifice, says the Church’s
Catechism, “because it
re-presents (makes present) the sacrifice of the Cross, .. and because it
applies its fruit” (1366; emphasis in the original). The Eucharist applies to each repentant worshiper the fruit of Christ’s victory on the cross. Again, and in even stronger language, the
Catechism asserts, “The Eucharist is
the efficacious sign and sublime cause of that communion in the divine life and that unity of the People of God by which the Church is kept in being” (1325; emphasis added). Think of that! Through the Eucharist God maintains the very being of the ark of salvation, the Catholic Church.
When we take our part in the Eucharistic action, we allow Jesus to exercise his high priesthood in our behalf by re-presenting his perfect offering of himself to the Father for our salvation. We allow the Holy Spirit to apply to us the salvation won for us on the cross by God the Son. When we share in the Eucharist, we cooperate in the continuing process of our sanctification (“work out your own salvation. . .”). That process is never complete in this life. It must continue until we draw our last breath.
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