Those who have been excommunicated or interdicted after the imposition or declaration of the penalty and others obstinately persevering in manifest grave sin are not to be admitted to holy communion.
If a Catholic is conscious of having committed a “grave sin” – for example, divorce or cohabitation with a romantic partner outside of marriage – he or she must first repent and perform penance for that sin before being eligible to receive Communion.
A person can be denied, however, because they are known to be in grave sin or have placed themselves outside of the Church. The Eucharist is the Body and Blood of Jesus, and its reception is a sign of communion with Christ and His Church. Sin separates us from God.
They either don't believe in God, don't believe Holy Communion is Who it is and/or don't believe in the Church Jesus established. Of course, anyone can change their heart and believe in God and the Church. Once they have made this change, and it has been declared so in public, then they can approach Holy Communion.
The communicants must seek the Eucharist on their own, rather than be invited to take it; be unable to receive it from their own ministers; demonstrate that they comprehend the Catholic understanding of the sacrament; and, finally, believe themselves free of grave sin.
Any excommunication or interdict obliges the person involved to refrain from receiving Holy Communion, but a minister is obliged to deny Holy Communion only to those on whom an ecclesiastical superior or tribunal has publicly imposed the censure or declared that it has in fact been incurred.
According to the Catholic Church, there are seven mortal or cardinal sins: lust, gluttony, avarice (greed), sloth (laziness), anger, envy, and pride.
Holy Communion is not meant to be administered to the unbeliever. If anyone has not accepted Jesus as the Lord and Saviour, such should not be allowed to partake of the body and blood of Jesus Christ.
The Catholic Church does not practise or recognise open communion. In general it permits access to its Eucharistic communion only to baptized Catholics.
A non-practicing Catholic who receives holy Communion commits the sin of sacrilege — the abuse of a sacrament — and causes scandal among the faithful. St. Paul reminded the Corinthians: "Every time, then, you eat this bread and drink this cup, you proclaim the death of the Lord until He comes.
Canon law mandates, “Those who are excommunicated or interdicted after the imposition or declaration of the penalty and others who obstinately persist in manifest grave sin are not to be admitted to Holy Communion” (CIC 915).
Because Catholics believe that the celebration of the Eucharist is a sign of the reality of the oneness of faith, life, and worship, members of faith communities with whom we are not yet fully united are not admitted to Holy Communion.
Mortal sins are also known as cardinal sins and are the more serious of the two types. These sins involve a grave matter committed with full knowledge and done freely and deliberately. Examples of mortal sins include murder, adultery, blasphemy, and idolatry.
Biblically, there are two types of people who should not take communion: the unregenerate and the unrepentant. Communion should not be open to those who are not born again or those who are living in known, unconfessed sin. Biblically, communion should not be limited to a particular church or denomination.
Communion, Therefore, is for Christians, Not Unbelievers
Only Christians can remember what Jesus accomplished on our behalf in His sacrificial death upon the cross. Non-Christians, by definition, cannot celebrate or remember Jesus' salvation, because they're not saved. Therefore, unbelievers should not take communion.
Divorced people are full members of the Church and are encouraged to participate in its activities. May a divorced Catholic receive Holy Communion? Yes. Divorced Catholics in good standing with the Church, who have not remarried or who have remarried following an annulment, may receive the sacraments.
You are always permitted to attend Sunday Mass, even with mortal sins on your soul. In such a case, you would refrain from receiving Holy Communion and either remain in your pew, or cross your arms across your chest for a blessing from the priest.
If you don't profess the Catholic faith, then it isn't appropriate to act as if you do. (Technical point: in very rare circumstances and only with the Bishop's permission, a Protestant who believes the teachings and requests Communion can receive the Eucharist [ CCC 1401].
Just as non-Catholics cannot receive Communion in the Catholic Church, Catholics cannot receive communion in non-Catholic services (regardless of what the Protestant denomination teaches).
Committed murder. Harbored hate/anger. Lusted after someone. Committed pride, greed, sloth and envy (the other 7 deadly sins not mentioned above)
Many evangelical churches celebrate communion periodically – monthly or quarterly. There's no clear command in Scripture as to how often we're to receive the Lord's Supper and for this reason, many churches have decided not to offer it weekly because they don't want it to become routine or lose its special status.
Papal or 'canon' law dictates that non-Roman Catholic Christians, for example Anglicans, cannot take part in the eucharist (sharing of the bread and wine) at a Catholic service and similarly it directs that Roman Catholics should not take holy communion in other Christian churches.
In other words, the unpardonable sin is the refusal to accept salvation when it is offered by God at the time of death (i.e. final impenitence). Grace comes to us through the Holy Spirit and by rejecting that final grace, we sin against the Spirit. It is hard to imagine anyone refusing salvation, but it happens.
Anger that has nothing good to achieve is outrightly sinful. Since anger an emotion, the devil can quickly use it against us. So, St. Paul cautions us in Ephesians 4:26 saying “And 'don't sin by letting anger control you.
Yes, such behavior really is indicative of turning one's back on the Lord and committing a mortal sin. God must come first in our lives. On Sunday, our primary duty is to worship God at Mass as a Church and to be nourished with His grace.