![What is ‘papal infallibility?’ CNA explains an often-misunderstood Church teaching #Catholic
When Pope Pius IX declared the doctrine of the Immaculate Conception of the Virgin Mary on Dec. 8, 1854, he had a golden crown added to the mosaic of Mary, Virgin Immaculate, in the Chapel of the Choir in St. Peter’s Basilica. / Credit: Daniel Ibañez/CNA
CNA Staff, Dec 8, 2025 / 06:00 am (CNA).
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 but important piece of Church dogma.The solemnity is the patronal feast of the United States and marks the recognition of the Blessed Mother’s freedom from original sin, which the Church teaches she was granted from the moment of conception.The Catechism of the Catholic Church states that Mary was “redeemed from the moment of her conception” (No. 491) in order “to be able to give the free assent of her faith to the announcement of her vocation” (No. 490). The dogma was disputed and challenged by Protestants over the centuries, leading Pope Pius IX to affirm it in his 1854 encyclical Ineffabilis Deus, stating unequivocally that Mary “was endowed with the grace of the Holy Spirit and preserved from original sin” upon her conception. Ineffabilis Deus is among the papal pronouncements that theologians have long considered to be “infallible.” But what does papal infallibility mean in the context and history of the Church?Defined by First Vatican Council in 1870Though Church historians argue that numerous papal statements down through the centuries can potentially be regarded as infallible under this teaching, the concept itself was not fully defined by the Church until the mid-19th century.In its first dogmatic constitution on the Church of Christ, Pastor Aeternus, the First Vatican Council held that the pope, when speaking “in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority,” and while defining “a doctrine concerning faith or morals to be held by the whole Church,” possesses the infallibility that Jesus “willed his Church to enjoy in defining doctrine concerning faith or morals.”Father Patrick Flanagan, an associate professor of theology at St. John’s University, told CNA that the doctrine of papal infallibility “does not concern the pope’s character.”“The pope is human,” Flanagan said. “In other words, he is fallible. He can sin and err in what he says about everyday matters.”Yet in “rare historical, narrowly defined moments” when the pope “exercises his authority as the supreme teacher of the Church of the Petrine office” and speaks “ex cathedra,” he is guided by the Holy Spirit to speak “indisputable truth” about faith and morals, Flanagan said. Flanagan underscored the four specific criteria that a papal statement must make to be considered infallible. For one, the pope must speak “in his official capacity as supreme pontiff,” not off-the-cuff or informally. The doctrine, meanwhile, must concern a matter of faith or morals. “No pope would speak ex cathedra on scientific, economic, or other nonreligious subjects,” Flanagan said. The statement must also be “explicitly straightforward and definitive,” he said, and it “must be intended to bind the whole Church as a matter of divine and Roman Catholic faith.” John P. Joy, a professor of theology and the dean of faculty at St. Ambrose Academy in Madison, Wisconsin, told CNA that the doctrine can be identified in part by the reading of Matthew 16:19.In that passage, Christ tells Peter, the first pope: “I will give you the keys to the kingdom of heaven. Whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”“Part of what Jesus is promising here is that he will endorse and ratify in heaven all of the judgments that Peter makes on earth,” Joy said. “So when Peter (or one of his successors) turns the key, so to speak, that is, when he explicitly declares that all Catholics are bound to believe something on earth, then we have the words of Jesus assuring us that God himself will hold us bound to believe the same thing in heaven,” he said. Though the concept of papal infallibility is well known and has become something of a pop culture reference, the number of times a pope has declared something infallibly appears to be relatively small. Theologians and historians do not always agree on what papal statements through the centuries can be deemed infallible. Joy pointed to the Immaculate Conception, as well as Pope Pius XII’s declaration on the Assumption of the Blessed Virgin in 1950, as two of the most well known.He pointed to numerous other statements, such as Pope Benedict XII’s Benedictus Deus from 1336 and Pope Leo X’s Exsurge Domine in 1520, as infallible statements. Flanagan pointed out that there is “no official list” of papally infallible statements. Such declarations are “rare,” he said. “A pope invokes his extraordinary magisterial powers sparingly.” When Catholics trust a papally infallible statement, Joy stressed, they “are not putting [their] faith in the pope as if he were an oracle of truth or a source of divine revelation.” “We are rather putting our faith in God, whom we firmly believe will intervene in order to stop any pope who might be tempted to proclaim a false doctrine in a definitive way,” he said.](http://unitedyam.com/wp-content/uploads/2025/12/what-is-papal-infallibility-cna-explains-an-often-misunderstood-church-teaching-catholic-when-pope-pius-ix-declared-the-doctrine-of-the-immaculate-conception-of-the-virgin-mary.webp)

When Pope Pius IX declared the doctrine of the Immaculate Conception of the Virgin Mary on Dec. 8, 1854, he had a golden crown added to the mosaic of Mary, Virgin Immaculate, in the Chapel of the Choir in St. Peter’s Basilica. / Credit: Daniel Ibañez/CNA
CNA Staff, Dec 8, 2025 / 06:00 am (CNA).
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 but important piece of Church dogma.
The solemnity is the patronal feast of the United States and marks the recognition of the Blessed Mother’s freedom from original sin, which the Church teaches she was granted from the moment of conception.
The Catechism of the Catholic Church states that Mary was “redeemed from the moment of her conception” (No. 491) in order “to be able to give the free assent of her faith to the announcement of her vocation” (No. 490).
The dogma was disputed and challenged by Protestants over the centuries, leading Pope Pius IX to affirm it in his 1854 encyclical Ineffabilis Deus, stating unequivocally that Mary “was endowed with the grace of the Holy Spirit and preserved from original sin” upon her conception.
Ineffabilis Deus is among the papal pronouncements that theologians have long considered to be “infallible.” But what does papal infallibility mean in the context and history of the Church?
Defined by First Vatican Council in 1870
Though Church historians argue that numerous papal statements down through the centuries can potentially be regarded as infallible under this teaching, the concept itself was not fully defined by the Church until the mid-19th century.
In its first dogmatic constitution on the Church of Christ, Pastor Aeternus, the First Vatican Council held that the pope, when speaking “in the exercise of his office as shepherd and teacher of all Christians, in virtue of his supreme apostolic authority,” and while defining “a doctrine concerning faith or morals to be held by the whole Church,” possesses the infallibility that Jesus “willed his Church to enjoy in defining doctrine concerning faith or morals.”
Father Patrick Flanagan, an associate professor of theology at St. John’s University, told CNA that the doctrine of papal infallibility “does not concern the pope’s character.”
“The pope is human,” Flanagan said. “In other words, he is fallible. He can sin and err in what he says about everyday matters.”
Yet in “rare historical, narrowly defined moments” when the pope “exercises his authority as the supreme teacher of the Church of the Petrine office” and speaks “ex cathedra,” he is guided by the Holy Spirit to speak “indisputable truth” about faith and morals, Flanagan said.
Flanagan underscored the four specific criteria that a papal statement must make to be considered infallible. For one, the pope must speak “in his official capacity as supreme pontiff,” not off-the-cuff or informally.
The doctrine, meanwhile, must concern a matter of faith or morals. “No pope would speak ex cathedra on scientific, economic, or other nonreligious subjects,” Flanagan said.
The statement must also be “explicitly straightforward and definitive,” he said, and it “must be intended to bind the whole Church as a matter of divine and Roman Catholic faith.”
John P. Joy, a professor of theology and the dean of faculty at St. Ambrose Academy in Madison, Wisconsin, told CNA that the doctrine can be identified in part by the reading of Matthew 16:19.
In that passage, Christ tells Peter, the first pope: “I will give you the keys to the kingdom of heaven. Whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.”
“Part of what Jesus is promising here is that he will endorse and ratify in heaven all of the judgments that Peter makes on earth,” Joy said.
“So when Peter (or one of his successors) turns the key, so to speak, that is, when he explicitly declares that all Catholics are bound to believe something on earth, then we have the words of Jesus assuring us that God himself will hold us bound to believe the same thing in heaven,” he said.
Though the concept of papal infallibility is well known and has become something of a pop culture reference, the number of times a pope has declared something infallibly appears to be relatively small.
Theologians and historians do not always agree on what papal statements through the centuries can be deemed infallible. Joy pointed to the Immaculate Conception, as well as Pope Pius XII’s declaration on the Assumption of the Blessed Virgin in 1950, as two of the most well known.
He pointed to numerous other statements, such as Pope Benedict XII’s Benedictus Deus from 1336 and Pope Leo X’s Exsurge Domine in 1520, as infallible statements.
Flanagan pointed out that there is “no official list” of papally infallible statements. Such declarations are “rare,” he said. “A pope invokes his extraordinary magisterial powers sparingly.”
When Catholics trust a papally infallible statement, Joy stressed, they “are not putting [their] faith in the pope as if he were an oracle of truth or a source of divine revelation.”
“We are rather putting our faith in God, whom we firmly believe will intervene in order to stop any pope who might be tempted to proclaim a false doctrine in a definitive way,” he said.
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![How pregnancy centers help women: Centers provide $450 million in value, report finds #Catholic
Jessica Williams and her 3-year-old daughter were helped by First Choice Pregnancy Services in Las Vegas. / Credit: Photo courtesy of Susan B. Anthony Pro-Life America
CNA Staff, Nov 17, 2025 / 16:11 pm (CNA).
When Jessica Williams became pregnant with another man’s child while she and her husband were separated, her husband pressured her to abort the child.As soon as she took the first abortion pill, mifepristone, she regretted it. “As a nurse, the reality of what I had done had hit me hard,” said Williams, who was nine weeks pregnant at the time. “Here I was working to save lives and about to take one of my own child’s lives.” But as a nurse, Williams knew that in spite of the pill cutting off the progesterone supply to her child, the baby might still be alive. She hadn’t yet taken the second pill, misoprostol, which would expel the child from her body. When she found a pregnancy center, First Choice Pregnancy Services in Las Vegas, staff immediately brought her in for an ultrasound.“They provided a free ultrasound, and that moment changed everything,” she said. Her baby was still alive.First Choice helped her through the abortion pill reversal process, a practice to reverse the effects of mifepristone soon after the woman takes the first abortion pill. Now, her daughter is a “healthy” and “thriving” 3-year-old, Williams said when she shared her story at a Nov. 17 online press conference.Williams is one of many women who have received help from pregnancy resource centers. Pregnancy centers across the U.S. “provided over $452 million in total medical care, support and education services, and material goods in 2024,” according to a Nov. 17 report by the Charlotte Lozier Institute. Pregnancy centers saw a total of 1 million new patients last year, “which is the equivalent of each center serving a new client every day in 2024,” Karen Czarnecki, the head of Charlotte Lozier Institute, said during the press conference. During the press conference, Marjorie Dannenfelser, head of Susan B. Anthony Pro-Life America, called pregnancy centers the “beating heart” of pro-life movement. Pregnancy centers, Dannenfelser said, “are going to the roots of the problem” by providing support for mothers across the board, whether they are struggling with addiction, domestic abuse, homelessness, completing school, or any other challenge. Report debunks false claims about pregnancy centers Dannenfelser noted there are some claims “often unchecked in the media” that call pregnancy centers “fake clinics” or say they “don’t have licensed medical staff.”“This is flat-out false,” Dannenfelser said. “Eight in 10 centers are providing free or low-cost medical services, staffed by over 10,000 medical professionals.” More than 80% of these centers provide ultrasound services, according to the report. Many of the centers also provide STD and STI testing and treatment, as well as abortion pill reversal, like in Williams’ experience. The report also found a 98% satisfaction rate among their clients — something Williams attested to.“They greeted me gently and were nonjudgmental,” Williams said of the staff and volunteers at the pregnancy clinic she went to. “They provided a safe, calm space for me, emotionally, spiritually.”“They gave me information and education without pushing me in any direction,” she continued. “They simply supported me in whatever path I chose.”More than three years later, Williams still keeps up with the women at the clinic.“I’m meeting with these ladies every month still,” Williams said. “They’re just a phone call, a text away, anything I need. I mean, we’re just almost becoming a family now.” Pregnancy centers also provide material, educational, and emotional support. For instance, 92% of centers offer material items to women in need. On average, each pregnancy center distributed six-packs of diapers and five baby outfits every day, according to the report. First Choice “provided diapers, material support, emotional and spiritual support groups, parenting resources, community connections, and just so much practical help in general,” Williams said. “It was a level of compassion that carried me through my entire pregnancy.” Offering material support is a growing effort in the pro-life movement. At pregnancy centers, material support has grown by more than 300% from 2019 to 2024.Many pregnancy centers also offer a variety of other resources, including childbirth classes, breastfeeding consultations, and outreach to victims of human trafficking. “Even right now, they’re doing a monthly get-together — we get to network with other mamas,” Williams said. “We’re [able] to access any resources.” The majority of pregnancy centers also help support women who are recovering from abortions.Williams said the women at the clinic “understood the pressure and fear” she was under to abort. Even after the reversal, her husband drove her to an abortion clinic when she was 16 weeks pregnant “to finish the job,” she said. “The clinic was on the same exact street [where] I saved my baby,” she said. “I couldn’t do it and demanded he take me home. I now know that the strategic location has also saved many other babies.” “They created a safe place for me to heal and feel supported,” she said of the clinic.](http://unitedyam.com/wp-content/uploads/2025/11/how-pregnancy-centers-help-women-centers-provide-450-million-in-value-report-finds-catholic-jessica-williams-and-her-3-year-old-daughter-were-helped-by-first-choice-pregnancy-services-in-las-v.webp)
