What the Catholic Church Teaches About Jehovah’s Witnesses

Witnesses reject the Trinity, and that belief decides most of what the Catholic Church says about them. Catholic diocesan lists do not count a Witness baptism as valid, so a Catholic who marries a Witness never validly baptized needs a dispensation. The Second Vatican Council never mentions Witnesses; read by its terms, they are neither Protestants nor separated brethren.

Jehovah’s Witnesses count themselves Christians. They say they follow “the teachings and example of Jesus Christ” and honor him “as our Savior and as the Son of God.” So when a Witness knocks on a Catholic’s door, two people who both honor Jesus and read the Bible stand face to face, and the question between them is who he is. Witnesses teach that “Jesus is not Almighty God,” and their publications count the teaching of “a trinity” among the marks of “Babylon the Great,” which they describe as “the world’s collective body of false religions.”

Witnesses and Catholics differ on God, Jesus, the soul and the afterlife, and the two give different answers to whether Witnesses are Christians.

Who are Jehovah’s Witnesses, and where did they come from?

In the Witnesses’ own account, “The modern-day organization of Jehovah’s Witnesses began at the end of the 19th century,” when a small group of Bible students near Pittsburgh, Pennsylvania, began comparing the churches’ doctrines with the Bible and publishing what they found. Charles Taze Russell “took the lead in the Bible education work at that time and was the first editor of The Watchtower,” but Witnesses say “he was not the founder of a new religion.” They regard Jesus as the founder of their organization.

A profile by Isabelle Kinnard Richman for the World Religions and Spirituality Project fills in the dates. Russell was born in Allegheny, Pennsylvania, in 1852, to a Presbyterian family. In 1870 he heard the Adventist preacher Jonas Wendell, and in 1872 he organized the first meeting of a Bible study group in Pittsburgh. He founded the magazine Zion’s Watch Tower in 1879, and the society that published it was incorporated in 1884. Russell died on 31 October 1916, and Joseph Franklin Rutherford succeeded him.

In 1931, under Rutherford’s leadership, the Bible Students took the name Jehovah’s Witnesses; the publishing corporation still carries the Watch Tower name. “Until 1931, we were known as Bible Students,” the Witnesses write. They point to God’s words to Israel in Isaiah 43:10: “Ye are my witnesses, saith the Lord, and my servant whom I have chosen.” The name, they say, “identifies our God,” whose name they render Jehovah.

Their 2025 report counts 9,205,326 Witnesses in 119,652 congregations in 241 lands. They count as Witnesses “only those who are actively preaching the good news of God’s Kingdom each month.” Attendance at their yearly Memorial of Christ’s death in 2025 was 20,635,015, more than twice as many.

Why does the Trinity matter so much to the Catholic Church?

Because Catholic faith and Catholic baptism both rest on it. The Catechism calls the Trinity “the central mystery of Christian faith and life” and “the most fundamental and essential teaching” of the faith. “We do not confess three Gods, but one God in three persons,” it says, and of Jesus: “Jesus Christ is true God and true man.” Catholics are baptized “in the name of the Father and of the Son and of the Holy Spirit,” and the Catechism adds: “The faith of all Christians rests on the Trinity.”

Witnesses reject both doctrines. “We worship the one true and Almighty God, the Creator, whose name is Jehovah,” they write, and they have “learned from the Bible that Jesus is not Almighty God and that there is no Scriptural basis for the Trinity doctrine.” They honor Jesus as the Son of God and Savior, but not as God.

Does the Catholic Church count Jehovah’s Witnesses as Protestants?

The Second Vatican Council’s decree on ecumenism, Unitatis Redintegratio (1964), sets the terms. It teaches that those “who believe in Christ and have been truly baptized are in communion with the Catholic Church even though this communion is imperfect,” and that “all who have been justified by faith in Baptism are members of Christ’s body, and have a right to be called Christian.” Baptism is the line it draws.

When the decree turns to the churches of the West, it describes communities that came to be separated from Rome “in the great upheaval which began in the West toward the end of the Middle Ages, and in later times too.” And it describes them as “those Christians who make open confession of Jesus Christ as God and Lord and as the sole Mediator between God and men, to the glory of the one God, Father, Son and Holy Spirit.”

The Council never mentions Jehovah’s Witnesses, so placing them means reading its terms. Witnesses do not fit either description. They do not confess Jesus as God or God as Father, Son and Holy Spirit, and the Catholic diocesan lists that name them do not recognize their baptism. The movement does have Protestant roots: Russell grew up Presbyterian and learned from Adventist preachers. But the passages that say who belongs, on baptism (Unitatis Redintegratio 3) and on confessing Christ as God and the one God as Father, Son and Holy Spirit (20), both leave Witnesses out. Read by those terms, Witnesses are neither Protestants nor separated brethren, although they read the Bible and honor Jesus as the Son of God. Witnesses themselves stress the distance: “in a number of ways,” they write, “we are different from other religious groups that are called Christian.”

Does the Catholic Church accept a Jehovah’s Witness baptism?

Catholic diocesan lists say no. Canon law holds that baptism “is validly conferred only by a washing of true water with the proper form of words.” Some Catholic dioceses publish lists that apply the rule. The Archdiocese of Baltimore’s list, which follows John Huels’s canon-law handbook The Pastoral Companion, places Jehovah’s Witnesses among “Some Ecclesial Communities without Valid Baptism.” The Archdiocese of Cincinnati’s list puts them under “Baptisms NOT Considered Valid,” a heading for baptisms it describes as “lacking in form or matter” or the subject of a formal ruling by the Congregation for the Doctrine of the Faith. Neither list says what a Witness baptism lacks. The same lists name, among others, the Church of Jesus Christ of Latter-day Saints, the Christadelphians and the Unitarians.

Witnesses baptize those who have come to faith; they teach that people “must not only exercise faith in Jesus but also change their course of life and get baptized.” Where a diocese follows these lists, a Witness whose only baptism was a Witness baptism is baptized on becoming Catholic, not received as an already baptized Christian. Canon law says that “Every person not yet baptized and only such a person is capable of baptism,” and keeps conditional baptism for cases of real doubt. A Witness validly baptized earlier, as a Catholic or in another Christian church, is not baptized again, because baptism “cannot be repeated” (canon 845).

Can a Catholic marry a Jehovah’s Witness?

Yes, with the Church’s dispensation or permission. When the Witness was never validly baptized, the Church treats the marriage as one between a Catholic and an unbaptized person. Canon 1086 says: “A marriage between two persons, one of whom was baptized in the Catholic Church or received into it, and the other of whom is not baptized, is invalid.” The Catechism calls this “disparity of cult” and says it “requires even greater circumspection” than a marriage with a baptized Christian of another church. “In case of disparity of cult an express dispensation from this impediment is required for the validity of the marriage.” If the Witness was validly baptized earlier in another Christian church, canon 1124 applies instead: such a marriage “cannot be celebrated without the express permission of the competent authority.”

The local bishop’s dispensation or permission comes with conditions. Under canon 1125, the Catholic must declare that he or she is “prepared to remove dangers of defecting from the faith” and make “a sincere promise to do all in his or her power so that all offspring are baptized and brought up in the Catholic Church.” The non-Catholic is told about the promise, and both are instructed about the purposes and essential properties of marriage. The wedding normally takes place before a priest or deacon and two witnesses, though the bishop can dispense from that form when grave difficulties stand in the way (canons 1108, 1127 and 1129).

Witnesses discourage such marriages from their side. The Watchtower calls Paul’s advice to marry “only in the Lord” counsel “that should govern the conduct of all Christians,” and says that “God has directed us to marry only true worshippers.” The verse it relies on is 1 Corinthians 7:39: a widow “is at liberty to be married to whom she will; only in the Lord.”

How do Jehovah’s Witnesses see the Catholic Church?

By their own definition, as part of false religion. Witnesses read the “great prostitute” of Revelation 17, named “Babylon the Great,” as a symbol of “the world’s collective body of false religions.” They write that “Many false religions continue to teach beliefs that date back to ancient Babylon, including a trinity, the immortality of the soul, and the use of images in worship.” The Catholic Church teaches all three: one God in three persons, a soul that “is immortal,” and a “veneration of images” that it says “is not contrary to the first commandment.”

Their page on Babylon the Great urges those who want to please God to “get out from among them,” separating from false religion. The criticism is aimed at religions as institutions; the same page says that “God is angry with false religion for misrepresenting him and for mistreating its followers.”

How can Catholics respond when Witnesses come to the door?

Witnesses knock on doors because preaching is part of being a Witness; their count of members includes only those who preach and report it each month. For Catholics, the Catechism’s general teaching on religious freedom, which is not written about Witnesses, applies here. It holds that “All men are bound to seek the truth, especially in what concerns God and his Church, and to embrace it and hold on to it as they come to know it.” That duty, it says, “does not contradict a ‘sincere respect’ for different religions,” nor charity, which urges Christians “to treat with love, prudence and patience those who are in error or ignorance with regard to the faith.” It also teaches that “Nobody may be forced to act against his convictions.”

The Witness on the step carries a name taken from God’s words to Israel: “Ye are my witnesses, saith the Lord” (Isaiah 43:10). The Catholic who opens the door is asked to answer with the faith as the Church holds it, and with “love, prudence and patience.”

Related reading

• What Are the Origins of Jehovah’s Witnesses?
• Jehovah’s Witnesses vs Protestant: The Definitive Comparison
• Do Jehovah’s Witnesses get Baptized?
• How Do Jehovah’s Witnesses Date for Marriage?
• Why Do Jehovah’s Witnesses Knock on Doors?
• A Christian guide to understanding Jehovah’s Witnesses