There are three ways that the Magisterium can teach infallibly:
- Papal infallibilty 2) Ecumenical Councils 3) Universal Magisterium
The Pope teaches infallibly only when his teachings meet the criteria defined by Vatican 1 and ratified by Vatican ll for an infallible papal teaching: (1)“The Roman Pontiff” (2) “speaks ex-cathedra” (“that is, when in the discharge of his office as shepherd and teacher of all Christians, and by virtue of his supreme apostolic authority”) (3) “he defines” (4) “that a doctrine concerning faith or morals” (5) “must be held by the whole Church.”
Let’s see how the Apostolic Constitution ‘Ineffabilis Deus’ satisfies these criteria of Vatican 1:
- Apostolic Constitution issued by Pope Pius lX
- “by the authority of Jesus Christ our Lord, of the Blessed Apostles Peter and Paul, and by our own”
- “We declare, pronounce, and define…”
- “that the doctrine which holds that the Blessed Virgin Mary, in the first instance of her conception, by a singular grace and privilege granted by Almighty God, in view of the merits of Jesus Christ, the Saviour of the human race, was preserved free from all stain of original sin,”…
- “is a doctrine revealed by God and therefore to be believed firmly and constantly by all the faithful.”
From the Apostolic Constitution ‘Ineffabilis Deus’ of Pope Pius lX :The Mind of the Bishops:
Although we knew the mind of the bishops from the petitions which we had received from them, namely, that the Immaculate Conception of the Blessed Virgin be finally defined, nevertheless, on February 2, 1849 [27] we sent an Encyclical Letter from Gaeta to all our venerable brethren, the bishops of the Catholic world…We likewise inquired what the bishops themselves thought about defining this doctrine and what their wishes were in regard to making known with all possible solemnity our supreme judgment.
We are certainly filled with the greatest consolation when the replies of the venerable brethren came to us. For replying to us…they not only again confirmed their own singular piety towards the Immaculate Conception of the most Blessed Virgin, and that of the religious and secular clergy and of the faithful, but with one voice they even entreated us to define our supreme judgment and authority the Immaculate Conception of the Virgin. In the meantime…after a diligent examination, our venerable brethren, the cardinals of the special congregation and the theologians chosen by us as counselors…asked with the same enthusiasm and fervor for the definition of the Immaculate Conception of the Mother of God.
Consequently,… desiring to proceed in the traditional manner,…we announced and held a consistory, in which we addressed our brethren, the cardinals of the Holy Roman Church. It was the greatest spiritual joy for us when we heard them ask us to promulgate the dogmatic definition of the Immaculate Conception of the Virgin Mother of God. [28]
Therefore, having full trust in the Lord that the opportune time had come for defining the Immaculate Conception of the Blessed Virgin Mary, Mother of God, which Holy Scripture, venerable Tradition, the constant mind of the Church (sensus fidelium), the desire of Catholic Bishops and the faithful, and the memorable Acts and Constitutions of our predecessors, wonderfully illustrate and proclaim…we concluded that we should no longer delay in decreeing and defining by our supreme authority the Immaculate Conception of the Blessed Virgin.
The Feast of the Immaculate Conception, celebrated on December 8, was established in 1476 by Pope Sixtus lV.
“But I have prayed for thee (Peter) that thy faith fail not; and when thou art converted, strengthen thy brethren.” {Luke 22:32}
Pax vobiscum
Good Fella