Schism

Schism is the refusal of submission to the Supreme Pontiff or of communion with the members of the Church subject to him (CCC 2089). It is distinct from heresy: a schismatic may believe all the same doctrines as the Catholic Church but refuses to be in communion with the Pope.

The Great Schism of 1054

The most significant schism in Christian history occurred in 1054 when the Eastern (Orthodox) Church broke communion with Rome over a combination of theological differences (primarily the Filioque), jurisdictional disputes, and cultural tensions. The Orthodox Churches are not in full communion with the Catholic Church, but the Catechism acknowledges they possess valid sacraments and apostolic succession, making the schism an "imperfect but deep communion" (CCC 838).

The Protestant Reformation

The Protestant Reformation of the 16th century, beginning with Martin Luther in 1517, produced further schism. Protestant communities, while containing many elements of the true Church, lack full communion with the Catholic Church and in most cases also lack valid Holy Orders and the Eucharist (CCC 817–819).

The Goal of Ecumenism

The Church prays and works for the restoration of full Christian unity. Ecumenical work does not compromise truth but seeks to heal the wounds of schism through dialogue, prayer, and charity — seeking the visible unity Christ prayed for (John 17:21; CCC 820–822).

Frequently Asked Questions

Is Eastern Orthodoxy a valid Church? The Catholic Church recognizes the Orthodox Churches as genuine particular Churches that possess valid apostolic succession, valid sacraments, and the Eucharist. The breach between Rome and Constantinople is a schism — a wound in the Body of Christ — not a division between a true Church and a false one (CCC 838).