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On the Memorial of the Dedication of the Basilicas of St. Peter and St. Paul in the Roman Rite; and on the anniversary of the promulgation of the Dogmatic Constitution on Divine Revelation “Dei Verbum” (18 November 1965). For other legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject).

“[W]e do put to confusion all those who, in whatever manner… assemble in unauthorized meetings; by indicating that tradition derived from the apostles, of the very great, the very ancient, and universally known Church founded and organized at Rome by the two most glorious apostles, Peter and Paul; as also the faith preached to men, which comes down to our time by means of the successions of the bishops. For it is a matter of necessity that every Church should agree with this Church, on account of its preeminent authority, that is, the faithful everywhere, inasmuch as the tradition has been preserved continuously by those who exist everywhere.

“The blessed apostles, then, having founded and built up the Church, committed into the hands of Linus the office of the episcopate… Eleutherius does now, in the twelfth place from the apostles, hold the inheritance of the episcopate. In this order, and by this succession, the ecclesiastical tradition from the apostles, and the preaching of the truth, have come down to us. And this is most abundant proof that there is one and the same vivifying faith, which has been preserved in the Church from the apostles until now, and handed down in truth.” (St. Irenaeus of Lyons, Against Heresies, III, iii, 2-3, ca. 180 AD)