Intercommunion

Cathechism of the Catholic Church

Catechism #1400

"Ecclesial communities derived from the Reformation and separated from the Catholic Church, "have not preserved the proper reality of the Eucharistic mystery in its fullness, especially because of the absence of the sacrament of Holy Orders." It is for this reason that, for the Catholic Church, Eucharistic intercommunion with these communities is not possible."

Code of Canon Law

Code of Canon Law Can. 844

§1.

Catholic ministers administer the sacraments licitly to Catholic members of the Christian faithful alone, who likewise receive them licitly from Catholic ministers alone, without prejudice to the prescripts of §§2, 3, and 4 of this canon, and ⇒ can. 861, §2.

§2.

Whenever necessity requires it or true spiritual advantage suggests it, and provided that danger of error or of indifferentism is avoided, the Christian faithful for whom it is physically or morally impossible to approach a Catholic minister are permitted to receive the sacraments of penance, Eucharist, and anointing of the sick from non-Catholic ministers in whose Churches these sacraments are valid.

§3.

Catholic ministers administer the sacraments of penance, Eucharist, and anointing of the sick licitly to members of Eastern Churches which do not have full communion with the Catholic Church if they seek such on their own accord and are properly disposed. This is also valid for members of other Churches which in the judgment of the Apostolic See are in the same condition in regard to the sacraments as these Eastern Churches.

§4.

If the danger of death is present or if, in the judgment of the diocesan bishop or conference of bishops, some other grave necessity urges it, Catholic ministers administer these same sacraments licitly also to other Christians not having full communion with the Catholic Church, who cannot approach a minister of their own community and who seek such on their own accord, provided that they manifest Catholic faith in respect to these sacraments and are properly disposed.

§5.

For the cases mentioned in §§2, 3, and 4, the diocesan bishop or conference of bishops is not to issue general norms except after consultation at least with the local competent authority of the interested non-Catholic Church or community.

Vatican II

Unitatis Redintegratio

§3.

The differences that exist in varying degrees between them and the Catholic Church--whether in doctrine and sometimes in discipline, or concerning the structure of the Church--do indeed create many obstacles, sometimes serious ones, to full ecclesiastical communion.

§8.

Yet worship in common [communicatio in sacris] is not to be considered as a means to be used indiscriminately for the restoration of Christian unity.

Ecclesiae de Eucharistia

Encyclical On the Eucharist in Its Relationship to the Church.

30.

The Catholic Church's teaching on the relationship between priestly ministry and the Eucharist and her teaching on the Eucharistic Sacrifice have both been the subject in recent decades of a fruitful dialogue in the area of ecumenism. We must give thanks to the Blessed Trinity for the significant progress and convergence achieved in this regard, which lead us to hope one day for a full sharing of faith. Nonetheless, the observations of the Council concerning the Ecclesial Communities which arose in the West from the sixteenth century onwards and are separated from the Catholic Church remain fully pertinent: “The Ecclesial Communities separated from us lack that fullness of unity with us which should flow from Baptism, and we believe that especially because of the lack of the sacrament of Orders they have not preserved the genuine and total reality of the Eucharistic mystery. Nevertheless, when they commemorate the Lord's death and resurrection in the Holy Supper, they profess that it signifies life in communion with Christ and they await his coming in glory.”

The Catholic faithful, therefore, while respecting the religious convictions of these separated brethren, must refrain from receiving the communion distributed in their celebrations, so as not to condone an ambiguity about the nature of the Eucharist and, consequently, to fail in their duty to bear clear witness to the truth. This would result in slowing the progress being made towards full visible unity. Similarly, it is unthinkable to substitute for Sunday Mass ecumenical celebrations of the word or services of common prayer with Christians from the aforementioned Ecclesial Communities, or even participation in their own liturgical services. Such celebrations and services, however praiseworthy in certain situations, prepare for the goal of full communion, including Eucharistic communion, but they cannot replace it.

The fact that the power of consecrating the Eucharist has been entrusted only to Bishops and priests does not represent any kind of belittlement of the rest of the People of God, for in the communion of the one body of Christ which is the Church this gift redounds to the benefit of all.

46.

In my Encyclical Ut Unum Sint I expressed my own appreciation of these norms, which make it possible to provide for the salvation of souls with proper discernment: “It is a source of joy to note that Catholic ministers are able, in certain particular cases, to administer the sacraments of the Eucharist, Penance and Anointing of the Sick to Christians who are not in full communion with the Catholic Church but who greatly desire to receive these sacraments, freely request them and manifest the faith which the Catholic Church professes with regard to these sacraments. Conversely, in specific cases and in particular circumstances, Catholics too can request these same sacraments from ministers of Churches in which these sacraments are valid.”

These conditions, from which no dispensation can be given, must be carefully respected, even though they deal with specific individual cases, because the denial of one or more truths of the faith regarding these sacraments and, among these, the truth regarding the need of the ministerial priesthood for their validity, renders the person asking improperly disposed to legitimately receiving them. And the opposite is also true: Catholics may not receive communion in those communities which lack a valid sacrament of Orders.

The faithful observance of the body of norms established in this area is a manifestation and, at the same time, a guarantee of our love for Jesus Christ in the Blessed Sacrament, for our brothers and sisters of different Christian confessions – who have a right to our witness to the truth – and for the cause itself of the promotion of unity.