Draft of a Dogatic Constitution on the Sources of Revelation, by the Preparatory Theological Commission for the Second Vatican Council, translated by Fr. Joseph A. Komonchak (2012). Available in PDF format (on this page) at In Verbo Veritatis.
Instructions on the Doctrines, Duties, and Resources, of the Catholic Religion, by [C. F.] L’Homond, translated by James Appleton (Philadelphia: Michael Kelly, 1841). With episcopal approbation. May be read online, and available in pdf, mobi, epub, and other formats, at Internet Archive.
To Receive Jesus: My First Reception of the Sacrament of Reconciliation and Solemn Holy Communion (Kochi: Syro-Malabar Major Archiepiscopal Commissions for Catechesis and Liturgy, 2013). With Imprimatur. Available in pdf format on this page of Syro Malabar Australia.
“Conscience and Truth”, by Joseph Cardinal Ratzinger (Pope Benedict XVI). Keynote address presented at the 10th Workshop for Bishops, February 1991, in Dallas, Texas.
The Via Pulchritudinis, Privileged Pathway for Evangelisation and Dialogue, by the Pontifical Council for Culture, March 27-28, 2006. May be read online on this page of Catholic Culture.
The Cultural Heritage of the Church and Religious Families, by the Pontifical Commission for the Cultural Patrimony of the Church, 10 April 1994. May be read online at the Holy See.
Our Divine Saviour and Other Discourses, 3rd edition, by the Right Rev. J.C. Hedley, OSB, Bishop of Newport (London: Burns & Oates; New York: Benzinger, 1905). May be read online, and available in pdf, mobi, epub, and other formats, at Internet Archive.
On the Feast of the Annunciation to the Blessed Virgin Mary Theotokos of the Conception and Incarnation of her Son, our God and Savior Jesus Christ, in His one true and Catholic Church. See also the texts listed on the page God and Christ.
“Thomistic Response to the Theory of Evolution: Aquinas on Natural Selection and the Perfection of the Universe”, by Mariusz Tabaczek, O.P., Ph.D. May be read online at Academia.edu and ResearchGate. (According to the text, it is the accepted manuscript of the article published in Theology and Science, Volume 13, Issue 3 (2015).)
“But though we, or an Angel from heaven, preach a gospel to you besides that which we have preached to you, let him be anathema… For I give you to understand, brethren, that the gospel which was preached by me is not according to man… but by the revelation of Jesus Christ.” (Galatians i, 8, 11-12)
“[K]eep that which is committed to thy trust, avoiding the profane novelties of words and oppositions of knowledge falsely so called. Which some promising, have erred concerning the faith.” (I Timothy vi, 20-21)
“What Jesus Christ was yesterday, and is to-day, he remains for ever. Do not be carried aside from your course by a maze of new doctrines” (Hebrews xiii, 8-9)
“Dearly beloved, taking all care to write to you concerning your common salvation, I was under a necessity to write to you: to beseech you to contend earnestly for the faith once delivered to the saints.” (St. Jude i, 3)