
Catholicism is a form of Christianity, specifically, it is the largest of the three major branches of Christianity, with an estimated 1.3 billion followers worldwide. Catholicism, along with Eastern Orthodoxy and Protestantism, is a Christian religion that has been the decisive spiritual force in the history of Western civilization. While all Catholics are Christians, not all Christians are Catholics. Catholicism differs from other Christian churches in its beliefs about the sacraments, the roles of the Bible and tradition, the importance of the Virgin Mary and the saints, and the papacy.
| Characteristics | Values |
|---|---|
| Beliefs | Catholics believe in the trinity (God in three persons: the Son, the Father, and the Holy Spirit). Catholics also believe that the bread and blood of Jesus become exactly that as outlined in the Bible. |
| Bible | Catholics use a Bible with 7 additional books that were removed by later Christian churches because they didn't affirm their viewpoints. Catholics do not interpret the Bible literally. |
| Pope | Catholics have a Pope, the Bishop of Rome, who serves as the leader of the Roman Catholic Church. |
| Sacraments | Catholics believe that the sacraments are a key and essential part of the faith, perpetuating the union of God and humankind. There are seven sacraments: baptism, the Eucharist, confirmation, reconciliation (confession), marriage, anointing of the sick, and holy orders. |
| Virgin Mary and Saints | Catholics place a high level of importance on the Virgin Mary and the saints. The statement of Pope Pius and Pope John Paul that Mary is the Queen of the Universe is considered idolatry by some. |
| Priesthood | Catholics believe that an earthly priest is necessary as an intermediary between humans and God, and that people who do not confess their sins to a human priest cannot be saved. |
| Membership | There are approximately 1.3 billion Catholics worldwide, making it the largest branch of Christianity. |
| Worship | Catholicism has one central form of worship (the Mass and the sacraments) but provides many different religious devotions, spiritualities, and religious orders. |
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What You'll Learn

Catholics are Christians, but not all Christians are Catholics
Catholicism is a form of Christianity, but not all Christians are Catholics. This statement can be unpacked by examining the differences between the Catholic Church and other Christian churches, as well as understanding the role of the Catholic Church within Christianity.
Firstly, it is important to recognise that the Catholic Church is the largest of the three major branches of Christianity, the other two being Eastern Orthodoxy and Protestantism. This means that all Catholics are Christians, but not all Christians are Catholics. There are an estimated 2.5 billion Christians worldwide, of whom about 1.3 billion are Catholics.
The Catholic Church traces its history to Jesus Christ and the Apostles and has played a decisive spiritual role in the history of Western civilisation. Over the centuries, it has developed sophisticated theology and an elaborate organisational structure headed by the Pope, the bishop of Rome, who leads the church in issues of faith and morality.
The Catholic Church holds unique beliefs and practices that set it apart from other Christian denominations. For example, the Catholic Church places a high importance on the sacraments, the Virgin Mary, the saints, and the papacy. Catholics believe in the real presence of Jesus in the Eucharist and have an unwavering set of moral laws outlined in the Catechism. They also use a Bible with seven additional books that were removed by later Christian churches.
While there are some differences, it is important to recognise that Catholics are indeed Christians. As one source states, "Catholic Christianity offers the world the fullness of the Christian Faith." Catholics believe that their church is the original and true form of Christianity established by Jesus and passed down through the Apostles. However, they acknowledge that other Christians, such as Baptists, Lutherans, Orthodox, and Anglicans, can also be considered Christians.
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Catholic beliefs about the sacraments
Catholicism is a form of Christianity with a rich theological history. There are seven sacraments of the Catholic Church, which, according to Catholic theology, were instituted by Jesus Christ and entrusted to the Church. The seven sacraments are:
Baptism
Baptism is seen as the sacrament of admission to the faith, bringing sanctifying grace to the person being baptized. In Catholicism, the baptism of infants is the most common form, but unbaptized children or adults who wish to join the faith must also receive the sacrament. A person is to be baptized only once in their life, and the Catholic Church recognizes baptisms performed by most other Christian denominations as valid. During the rite of baptism, holy water is usually sprinkled or poured over the head by a priest who simultaneously invokes the Trinity with the words, "I baptize you in the name of the Father, and of the Son, and of the Holy Spirit." The old self is said to die in the waters, and a new self emerges, mirroring the death and resurrection of Christ.
Confirmation
Confirmation is the second sacrament of initiation and serves to "confirm" a baptized person in their faith. The rite of confirmation can occur as early as age seven for children who were baptized as infants but is commonly received around age thirteen; it is performed immediately after baptism for adult converts. Confirmation, along with Baptism and Holy Orders, may not be repeated, as their effect is permanent.
Eucharist
The Eucharist, or Holy Communion, is the central rite of Catholic worship and is considered a sacrament of initiation. It can be received daily if desired. A baptized child's First Communion is usually celebrated around age seven or eight and is preceded by their first confession (the sacrament of Reconciliation). During the mass, the priest consecrates bread and wine, which are transubstantiated into the body and blood of Christ. The congregation then shares in the sacred meal as a memorial of Christ's sacrifice on the cross and a reflection of his Last Supper with his disciples.
Penance and Reconciliation
The Sacrament of Penance and Reconciliation involves confessing one's sins to a priest, who forgives sins through the power of God.
Anointing of the Sick
The Anointing of the Sick is one of the two sacraments of healing.
Holy Orders
Holy Orders is one of the sacraments of service and, like Baptism and Confirmation, may not be repeated.
Matrimony
Matrimony is the other sacrament of service. In the Catholic Church, marriage is a sacrament that is seen as a definitive self-giving between a man and a woman. If one spouse is a non-Catholic Christian, permission from the competent authority of the Catholic Church is required for a valid marriage. If one spouse is not a Christian, dispensation is necessary.
In summary, these seven sacraments are seen as sacred and visible signs instituted by Jesus Christ to give grace, an undeserved gift from God. Each sacrament is celebrated with a visible rite that reflects its invisible, spiritual essence. While some sacraments are received only once, others require ongoing participation to foster a "living faith."
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The role of the Bible and tradition
Catholicism is a form of Christianity. In fact, with 1.3 billion adherents, Roman Catholicism is the largest of the three major branches of Christianity. However, there are significant differences between Catholicism and other Christian denominations, such as Protestantism, in their beliefs about the Bible and tradition.
The Role of the Bible
Both Catholics and Protestants believe that the Bible is the divinely inspired Word of God. However, they disagree on whether the Bible is the only source of divine revelation. Protestants adhere to the principle of "sola scriptura", which means that the Bible is the only infallible source of authority on all matters of belief and practice. In other words, the Scripture alone is sufficient for believers; nothing else is needed.
Catholics, on the other hand, believe that the Bible is only one channel of divine revelation. They argue that not all of the revelations given to the apostles were committed to writing, and that some were transmitted orally. Sacred oral tradition, consisting of the spoken words of inspired people, is believed to be a second form of authoritative divine revelation. Therefore, the Catholic Church claims that the Scripture and holy tradition cannot be rightly understood or interpreted without the authoritative interpretation given by the Church. This interpretation is considered infallible and is promulgated by the Magisterium, with the Pope as its head.
The Role of Tradition
Tradition plays a significant role in Catholicism and Protestantism, but the two denominations have different views on its nature and role. Protestants often argue that the concept of Tradition is ambiguous and lacking in clear definition, and use this as a justification for embracing sola scriptura. However, Catholics view Tradition (with a capital "T") as the infallible interpretation of the Bible. They believe that the early Church Fathers reached a consensus on the correct interpretation of the Scriptures, and that this consensus came from Jesus, making it infallible.
In addition to Tradition, Catholics also have traditions (with a lowercase "t") which are practices and beliefs that the Church has established over time. These traditions are not considered infallible. Protestants, on the other hand, reject the idea that Tradition is necessary for interpreting the Scriptures, and argue that the Scriptures alone are sufficient. They see the Catholic doctrine of Tradition as contradicting statements in the Bible.
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Importance of the Virgin Mary and saints
Catholicism is a form of Christianity. In fact, Catholicism is the largest of the three major branches of Christianity, with about 1.3 billion followers out of the 2.5 billion Christians in the world.
The Virgin Mary and the saints are important figures in Catholicism. The Catholic Church has always celebrated Mary, and she is the subject of five key teachings:
- Theotokos: Mary is the Mother of God.
- Perpetual Virginity: Mary was a virgin before, during, and after the birth of Jesus.
- Immaculate Conception: Mary was conceived without original sin.
- Assumption: Mary was taken body and soul into heaven.
- Co-redemptrix, Mediatrix, and Advocate: Mary plays a unique role in redemption.
Mary is seen as a bridge between the old and the new, and she is the subject of art, music, and prayer. Catholics pray to Mary, but not in the same way they pray to God. Instead, Catholics believe that Mary and the saints are dead to this world but live on with God in the next, and they believe that their prayers are more powerful now that they are in heaven.
Saints are also important figures in Catholicism. There are more than 10,000 saints recognized by the Catholic Church, and they include martyrs, missionaries, theologians, and "everyday people" who dedicated their lives to pursuing God. Catholics venerate the saints and look to them as examples of lives well lived in the faith. Many Catholics find comfort in the knowledge that saints shared in their struggles, sins, doubts, or hardships, and they ask specific saints to pray for them. For example, St. Judas (Jude) is the patron saint of impossible or desperate causes, and many Catholics ask him to pray on their behalf for the resolution of seemingly impossible situations in their lives.
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The Catholic Church as a separate religion
Catholicism is one of the world's major religions, with around 1.3 billion followers worldwide. It is the largest of the three major branches of Christianity, the other two being Eastern Orthodoxy and Protestantism. All Catholics are Christians, but not all Christians are Catholics.
The Catholic Church is seen as a separate religion from other forms of Christianity due to its unique characteristics. One of the most significant differences is the Catholic Church's belief in the importance of the Virgin Mary, practically treating her as a fourth member of the Trinity. This is considered idolatry by some, as it appears to contradict the Bible, which mentions very little about Mary.
Another key difference is the Catholic doctrine of confession, which states that people who do not confess their sins to a human priest cannot be saved and are cursed for eternity. This idea of a priest as a necessary intermediary between God and humans is not present in other forms of Christianity and is seen as a departure from biblical teachings.
Furthermore, the Catholic Church has added extra-biblical practices and traditions that are not found in other Christian denominations. These include the celebration of seven sacraments, such as baptism, the Eucharist, and reconciliation, which are not considered essential by other Christians. The Catholic Church also uses a different version of the Bible, which includes seven additional books that were removed by later Christian churches.
While some may argue that these differences make Catholicism a separate religion, others may view it as a unique branch of Christianity with its own distinct beliefs and practices.
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Frequently asked questions
Yes, Catholicism is one of the three major branches of Christianity, the other two being Eastern Orthodoxy and Protestantism.
Catholicism differs from other Christian churches and denominations in its beliefs about the sacraments, the roles of the Bible and tradition, the importance of the Virgin Mary and the saints, and the papacy.
The sacraments are a key and essential part of the Catholic faith. There are seven sacraments: baptism, the Eucharist, confirmation, reconciliation (confession), marriage, anointing of the sick, and holy orders.
Catholicism does not read the Bible in a totally literal sense. They also use a Bible with seven additional books that were removed by later Christian churches as they did not affirm their viewpoints.
The Virgin Mary is considered extremely important in Catholicism, with some even treating her as a fourth member of the Trinity. The Pope has referred to her as the "Queen of the Universe", which is considered idolatrous by some.







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