A contemporary painting (1870) of the First Vatican Council, at which the doctrine of papal infallibility was declared (Wikimedia Commons) Papal infallibility, solemnly defined by the First Vatican ...

Historically, there were many expressions similar to “papal infallibility”, such as: papal authority, papal primacy, headship, papal supremacy, Roman primacy, etc. All of those can be traced back to ...

On Dec. 8 the Catholic Church celebrates the solemnity of the Immaculate Conception — a paramount feast in the Church’s liturgical calendar and one that indirectly touches on a regularly misunderstood ...

The idea of papal infallibility has both baffled and amused Protestants at least since the First Vatican Council formally adopted the idea nearly 150 years ago (though the notion existed informally ...

Since the First Vatican Council of 1870, it has been a dogma of the Roman Catholic Church that the Pope, when he speaks ex cathedra on matters of faith or morals, is infallible. In the most ...

Editor's note: Fr. Hans Küng, the Swiss theologian, says that he has received a letter from Pope Francis that responds "to my request to give room to a free discussion on the dogma of infallibility." ...

The origin and history of the concept of papal infallibility, which originates as far back as 519 CE. Though papal infallibility was only set in stone in 1870, the idea had been part of church history ...

The origin and history of the concept of papal infallibility, which originates as far back as 519 CE. Though papal infallibility was only set in stone in 1870, the idea had been part of church history ...