Should I receive if I have an unconfessed mortal sin on my conscience?

By November 18, 2014 3 Comments

Full Question

I receive the Eucharist every Sunday; however, should I do so if I have an unconfessed mortal sin on my conscience? A priest told me as long as I am actively trying to eliminate this sin from my life, the Eucharist is helpful, and I shouldn’t deprive myself of the grace present in the Eucharist. He said if I stop trying to eliminate this sin, then don’t present myself, but as long as I’m trying, don’t deny the Eucharist to myself. Is this good advice?


Three requirements must be met for sin to be mortal: grave matter, full knowledge, and deliberate consent. Since you say that you are “actively trying to eliminate this sin” from your life, your priest may believe that your action lacks deliberate consent and, therefore, does not qualify as mortal sin. If this is the case, the Eucharist may benefit you greatly. On the other hand, if your sin is indeed mortal sin, then you should not receive the Eucharist without first going to confession.
The Code of Canon Law is clear that a person conscious of mortal sin may only receive the Eucharist under grave circumstances:

A person who is conscious of grave sin is not to celebrate Mass or receive the body of the Lord without previous sacramental confession unless there is a grave reason and there is no opportunity to confess; in this case the person is to remember the obligation to make an act of perfect contrition which includes the resolution of confessing as soon as possible. (CIC 916)

The Catechism of the Catholic Church explains,

The Lord addresses an invitation to us, urging us to receive him in the sacrament of the Eucharist: "Truly, I say to you, unless you eat the flesh of the Son of man and drink his blood, you have no life in you." To respond to this invitation we must prepare ourselves for so great and so holy a moment. St. Paul urges us to examine our conscience: "Whoever, therefore, eats the bread or drinks the cup of the Lord in an unworthy manner will be guilty of profaning the body and blood of the Lord. Let a man examine himself, and so eat of the bread and drink of the cup. For any one who eats and drinks without discerning the body eats and drinks judgment upon himself." Anyone conscious of a grave sin must receive the sacrament of reconciliation before coming to Communion. (CCC 1384-1385)

I recommend that, after engaging in grave matter, you go to confession as soon as possible and then receive the Eucharist as often as possible. “By the same charity that it enkindles in us, the Eucharist preserves us from future mortal sins. The more we share the life of Christ and progress in his friendship, the more difficult it is to break away from him by mortal sin” (CCC 1395).


  • If you are a sinner the more you need Jesus Christ. Which means the more you need to partake the holy communion. Because by doing so, you are remembering that by the blood and body of Christ, you/we are totally forgiven by God for all our sins. See, you can do nothing for the forgiveness of your sins. We didn’t have the part for Christ did our part. He died as us. All we have to do is believe in the Lord Jesus Christ. Believe and rest on His finished work. Jesus said “it is finished!”. Well if we think that the forgiveness of ours sins will be done only if we confess it. We are referring to man’s effort. All we have to do is believe in the Lord Jesus Christ that He died as us for the atonement of our sins. and He rose from the dead for our Justification. That is what the Bible called: GRACE! hallelujah!

  • Joan Borino says:

    I always thought if we say the prayer, Lord I am not worthy that Thou should enter my soul but say the word and my soul shall be healed, would allow us to receive communion. I also thought if we believed if we confess to Jesus, since He knows our sins and thoughts, our sins would be forgiven, without going to confession.

  • Nelgerald says:

    Once I believe I was not is a state of Grace. I went to the confessional box as I was feeling remorseful and wanted to correct my ways. When I entered the confessional, the priest suddenly stood up and said, it’s time for the Mass, come back next time. He proceeded to the sacristy for the mass , and I was left astounded.
    My sin has been troubling me for weeks, and I went to Church that afternoon, gaining courage to finally enter the confessional only to be “rejected.” I proceeded to attend that mass anyway and receive communion. I still have not confess, but I am willing to do so next time.

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