In this video, we dive once more into the historicity behind the Tome of Pope St. Leo at the Ecumenical Council of Chalcedon, and discuss whether or not the Tome was an ex-cathedra statement and a proof of papal infallibility as Catholic apologists often claim.

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"The Gift of Infallibility. The Official Relatio on Infallibility of Bishop Vincent Ferrer Gasser at Vatican Council I" by Bishop Vincent Gasser. Translated by Fr. James T. O'Conner. Found here for free: https://archive.org/details/giftofinf...

McGuckin, J. A. (2010). Saint Cyril of Alexandria and the Christological Controversy (Reprint ed.). St Vladimirs Seminary Pr.

Price, R., & Gaddis, M. (2007). The Acts of the Council of Chalcedon (Translated Texts for Historians LUP) (Volume 45). Liverpool University Press.

00:00 Introduction
04:00 Defining Papal Infallibility
11:26 Do I only have to submit to ex-cathedra decrees?
14:44 The History of Ephesus 1&2, Chalcedon & the Tome of Leo
33:40 "Peter has spoken through Leo!"
35:42 Judging the Tome
51:47 Did the Bishops really Judge the Tome?
1:01:49 Did Pope Leo think the Tome was ex-cathedra?
1:08:02 Did only a minority of Bishops Object?
1:14:45 A Final Roman Catholic prooftext
1:18:41 Conclusion