I read the list of quotes provided in the blog, but none seemed to even support papal infallibility. Maybe I missed it but what quote directly supports papal infallibilty?
Also funny that the author tried to disprove that papal infallibility was a latin invention and goes on to quote St. Augustine and St. Jerome.
You can look them up from this, especially Chapter 4 (ex cathedral), keeping in mind that is the the infallibility of the Church which is the basis of the papal infallibility (Vatican I) and of the conciliar infallibility and of the infallibility of the ordinary and universal magisterium (Vatican II).
Pastor Aeternus - 1870
Ch. 1 - Therefore, if anyone says that blessed Peter the apostle was not appointed by Christ the lord as prince of all the apostles and visible head of the whole Church militant; or that it was a primacy of honor only and not one of true and proper jurisdiction that he directly and immediately received from our lord Jesus Christ himself: let him be anathema.
42 Jn 1, 42.
43 Mt 16, 16 19.
44 Jn 21, 15-17.
Ch. 2 - Therefore, if anyone says that it is not by the institution of Christ the lord himself (that is to say, by divine law) that blessed Peter should have perpetual successors in the primacy over the whole Church; or that the Roman Pontiff is not the successor of blessed Peter in this primacy: let him be anathema.
45 See Mt 7, 25; Lk 6, 48.
46 From the speech of Philip, the Roman legate, at the 3rd session of the Council of Ephesus (D no. 112).
47 Leo I, Serm. (Sermons), 3 (elsewhere 2), ch. 3 (PL 54, 146).
48 Irenaeus, Adv. haeres. (Against Heresies) 1113 (PG 7, 849), Council of Aquilea (381), to be found among: Ambrose, Epistolae (Letters), 11 (PL 16, 946).
Ch. 3 - So, then, if anyone says that the Roman Pontiff has merely an office of supervision and guidance, and not the full and supreme power of jurisdiction over the whole Church, and this not only in matters of faith and morals, but also in those which concern the discipline and government of the Church dispersed throughout the whole world; or that he has only the principal part, but not the absolute fullness, of this supreme power; or that this power of his is not ordinary and immediate both over all and each of the Churches and over all and each of the pastors and faithful: let him be anathema.
49 Council of Florence, session 6 (see above p. 528).
50 See Jn 10, 16.
51 Ep. ad Eulog. Alexandrin. (Letter to Eulogius of Alexandria), VIII 29 (30) (MGH, Ep. 2, 31 28-30, PL 77, 933).
52 Pius VI, Letter Super soliditate dated 28 Nov. 1786.
53 From Michael Palaeologus’s profession of faith which was read out at the second Council of Lyons (D no. 466).
54 Nicholas I, Ep. ad Michaelem imp. (Letter to the emperor Michael) (PL 119, 954).
Ch. 4 - Therefore, faithfully adhering to the tradition received from the beginning of the Christian faith, to the glory of God our savior, for the exaltation of the Catholic religion and for the salvation of the Christian people, with the approval of the Sacred Council, we teach and define as a divinely revealed dogma that when the Roman Pontiff speaks EX CATHEDRA, that is, when, in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority, he defines a doctrine concerning faith or morals to be held by the whole Church, he possesses, by the divine assistance promised to him in blessed Peter, that infallibility which the divine Redeemer willed his Church to enjoy in defining doctrine concerning faith or morals. Therefore, such definitions of the Roman Pontiff are of themselves, and not by the consent of the Church, irreformable. So then, should anyone, which God forbid, have the temerity to reject this definition of ours: let him be anathema.
55 Mt 16, 18.
56 From Pope Hormisdas’s formula of the year 517 (D no. 171), see above p. 157 n. 1.
57 From Michael Palaeologus’s profession of faith which was read out at the second Council of Lyons (D no. 466).
58 Council of Florence, session 6 (see above p. 528). S Bernard, Ep. (Letters) 190 (PL 182, 1053).
59 Bernard, Ep. (Letters) 190 (PL 182, 1053).
60 Lk 22, 32.
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