Gratia Plena
Integrated study of the Bible, Catechisms, and Catholic magisterium
How to begin
A platform for the study of the faith
Gratia Plena is a platform for study. Each Catholic text — Bible, Catechisms, Second Vatican Council, encyclicals — is woven together by a web of cross-references. Start with the Catechism of the Catholic Church: every paragraph opens paths to the other works. Follow the connections, read the sources, work your way toward the Truth.
Start with the Catechism →Or explore the rest of the corpus
Holy Bible
Four versions available: Ave Maria (Portuguese), CPDV and Douay-Rheims (English), Clementine Vulgate (Latin). Start at the index.
Open indexCatechism of Pope Saint Pius X (Major)
991 questions and answers in the traditional catechetical format. Major edition of 1905, in Portuguese.
Open indexVatican II Council
The 16 documents of the Council: 4 constitutions, 9 decrees, and 3 declarations — all in Portuguese.
Open indexPapal Encyclicals and Exhortations
Magisterial letters and exhortations of the popes. Available: Humani Generis (Pius XII), Humanae Vitae (Paul VI), Familiaris Consortio and Centesimus Annus (John Paul II).
Open indexFull-text search
Find words and phrases across the entire English corpus — CPDV, Douay-Rheims, and the Catechism of the Catholic Church.
Open searchComing soon
Works already on the roadmap, in no fixed order — some depend on technical steps for digitization and review; others on public-domain legal timelines.
Catechism of Saint Pius X — Minor (1912)
Coming soon1912 Minor edition, with about 433 questions and answers. More condensed than the Major, it was the most widespread parish-catechesis catechism in the pre-conciliar Church.
Fr. Antônio Pereira de Figueiredo Bible
Coming soonVulgate translation by Fr. Antônio Pereira de Figueiredo (late 18th century). First complete Portuguese Bible, in the public domain.
Fr. Matos Soares Bible (1956)
Coming soonOne of the most respected Catholic translations of the 20th century. Enters the public domain on January 1, 2028.
Church Fathers
Coming soonThe writings of the Fathers: St. Augustine, St. John Chrysostom, St. Athanasius, St. Cyril of Jerusalem, and others. Primary sources of the Church's Tradition.
Summa Theologica
Coming soonThe Summa Theologica by St. Thomas Aquinas — systematic synthesis of Catholic theology in the scholastic structure of parts, questions, and articles.
First Vatican Council (1869-1870)
Coming soonThe 20th Ecumenical Council, convened by Bl. Pius IX. Two documents available on vatican.va: Dogmatic Constitution Dei Filius (on the Catholic faith) and Dogmatic Constitution Pastor Aeternus (on the Church and the Roman Pontiff).
Other Ecumenical Councils
Coming soonThe remaining councils prior to Vatican II — Nicaea I, Constantinople, Chalcedon, Lateran, Lyons, Vienne, Florence, Trent, and others. Inclusion depends on structured public-domain digital sources.