Authentic Resources

The full English text of the Catechism of the Catholic Church, promulgated by Pope St. John Paul II in 1992 (with 1997 revisions). The Eucharist is treated in Part Two, Section Two, Chapter One, Article 3.

The specific section treating the Eucharist — from institution at the Last Supper through transubstantiation, the Eucharistic sacrifice, and the worship of the Blessed Sacrament.

The United States Conference of Catholic Bishops' hosted edition of the Catechism, with the same official text used by American Catholics.

“The Church draws her life from the Eucharist.” The fourteenth and final encyclical of Pope St. John Paul II, written on Holy Thursday of his twenty-fifth year as pope — a luminous meditation on the Eucharist in relation to the Church.

“The Mystery of Faith.” Pope Paul VI's encyclical on the doctrine and worship of the Holy Eucharist, reaffirming transubstantiation against the theological confusion of the post-conciliar period.

“The Sacrament of Charity.” Pope Benedict XVI's apostolic exhortation following the 2005 Synod of Bishops on the Eucharist — a rich reflection on the Eucharist as mystery to be believed, celebrated, and lived.

The thirteenth session of the Council of Trent, in which the Church definitively taught the doctrine of transubstantiation and the Real Presence — the foundational dogmatic text for Eucharistic theology.

The twenty-second session, defining the Mass as a true and proper sacrifice, the same as that offered on Calvary, differing only in the manner of offering.

The entire sixth chapter of the Gospel according to John, in which Our Lord teaches plainly that He is the bread come down from heaven, and that His flesh is true food and His blood true drink.

The narrative of the Last Supper in Matthew's Gospel — “This is my Body” and “This is my Blood of the covenant, which is poured out for many.”

St. Paul's account of the institution of the Eucharist — chronologically the earliest written record we possess, together with a solemn warning against unworthy reception.

The Lukan account of the Last Supper, including Christ's solemn command, “Do this in remembrance of me” — the foundation of the Eucharistic celebration.

The oldest and most thoroughly studied Eucharistic miracle in the Catholic Church. Includes the scientific findings of Professor Odoardo Linoli's 1970s examination of the relics.

An extensive catalogue of approved Eucharistic miracles across the world, compiled by Blessed Carlo Acutis before his death in 2006. A remarkable work of teenage sanctity and scholarship.

The official website of the Holy See. All papal documents, encyclicals, apostolic letters, and conciliar texts are published here in their authoritative form.

The assembly of the Catholic hierarchy of the United States. Hosts Sacred Scripture, the Catechism, daily readings, and pastoral resources.

A multi-year initiative of the U.S. bishops to rekindle devotion to the Eucharist. Includes articles, resources for parishes, and testimonies.

Founded by Mother Angelica. EWTN hosts a vast library of Catholic documents, saints' writings, apologetics, and devotional resources, all faithful to the Magisterium.

A comprehensive, searchable archive of the writings of the Church Fathers in English translation — the raw material of patristic Eucharistic theology.