Jesus Christ did not found an “invisible” church built on private interpretation of Scripture and divided into conflicting teachings. He founded a visible Church: a people united in faith, worship, sacrament, and apostolic leadership.

The New Testament shows believers gathered into one visible body under the authority of the apostles and their successors, with distinct ministries such as bishops, priests, and deacons serving the life of the Church. Christ established this Church to continue His mission in the world, to be a light to the nations, and to remain the pillar and bulwark of the truth (Matthew 5:14–16; Matthew 16:18; Acts 2:42; 1 Timothy 3:15; 1 Timothy 3:1–13; Titus 1:5).

Christ Himself prayed that His followers would be one so that the world might believe. The visible unity of the Church is therefore part of the witness Christ intended for His people (John 17:20–23; Ephesians 4:11–15).

To be fully Christian is to belong to the Church Christ founded. The Catholic Church is that Church, built upon the apostles and handed down through apostolic succession.

Scripture presents the Church as a visible and authoritative body charged with guarding the truth, preserving unity, and teaching in Christ’s name (Matthew 16:18–19; Luke 10:16; Acts 15; Ephesians 4:4–5; 1 Timothy 3:15).

Jesus gave Peter a unique pastoral authority among the apostles. He entrusted Peter with the keys of the kingdom, prayed that his faith would not fail, and commanded him to strengthen the brethren and shepherd Christ’s flock.

Christ’s kingdom is the fulfillment of the Davidic kingdom, and the gift of the keys points back to the royal office described in Isaiah, where authority is entrusted to the king’s chief steward. The papacy is the continuation of the office Christ entrusted uniquely to Peter and serves as a visible principle of unity within the Church (Matthew 16:18–19; Luke 22:31–32; John 21:15–17; Isaiah 22:20–22; Luke 1:32–33).

After His Resurrection, Christ entrusted the apostles with a real ministry of reconciliation. He breathed on them and gave them authority to forgive sins in His name.

The sacrament of confession is therefore the ordinary means Christ gave for the forgiveness of sins committed after baptism and for restoring the sinner to communion with the Church (John 20:21–23; James 5:16; 2 Corinthians 5:18).

In the Eucharist, Jesus Christ truly gives His Body and Blood under the appearances of bread and wine. This teaching comes directly from Christ’s own words and from the constant faith of the Church.

Jesus speaks with unmistakable realism in John 6, institutes the Eucharist at the Last Supper, and St. Paul warns against profaning the body and blood of the Lord (John 6:51–58; Luke 22:19–20; 1 Corinthians 10:16; 1 Corinthians 11:27–29).

The Mass makes present sacramentally the one sacrifice of Christ on Calvary. It does not repeat Christ’s sacrifice, but makes that one offering present to the Church in every age.

At the Last Supper, Christ gave His Body and Blood to the apostles and commanded them to do this in memory of Him. From the beginning, the Church has understood the Eucharist as participation in the sacrifice of the Cross (Luke 22:19–20; 1 Corinthians 10:16–21; 1 Corinthians 11:23–26; Hebrews 13:10).

Worship belongs to God alone. Mary is honored because she is the Mother of God, the model disciple, and the woman chosen to bear the Incarnate Word, but adoration is given only to the Holy Trinity.

Christ is the Davidic King whose kingdom shall have no end, and in the Davidic kingdom the king’s mother held a place of honor as queen mother. Scripture itself foretells that all generations will call Mary blessed, and her role always directs believers to her Son (Luke 1:28; Luke 1:42; Luke 1:48; Luke 1:32–33; 1 Kings 2:19; John 2:1–11).

The saints in heaven remain members of the Body of Christ. Asking their prayers expresses the unity of the Church across heaven and earth.

Scripture depicts the saints presenting prayers before God and describes the faithful as surrounded by a great cloud of witnesses (Revelation 5:8; Revelation 8:3–4; Hebrews 12:1).

Divine revelation was handed on through both Sacred Scripture and Sacred Tradition. Together they form one deposit of faith entrusted to the Church.

The apostles transmitted the faith both in writing and through living teaching. Scripture itself commands Christians to hold fast to what was handed on not only by letter but also by word of mouth (2 Thessalonians 2:15; 1 Corinthians 11:2; 2 Timothy 2:2; John 21:25).

Salvation is entirely the gift of God’s grace. No one can save himself by his own power. Yet grace truly transforms the believer so that faith bears fruit in love and obedience.

Scripture teaches that we are saved by grace and called to live a life of obedience and charity. Faith and works are not opposed, but united in the life of the Christian, for faith without works is dead (Ephesians 2:8–10; James 2:24–26; Galatians 5:6; Philippians 2:12–13).

Purgatory is the final purification of those who die in God’s grace and friendship but still need purification before entering the full holiness of heaven. Nothing unclean shall enter the presence of God.

Scripture points to purification after death and to prayer for the dead, which makes sense only if the faithful departed can still be aided by God’s mercy through the prayers of the Church (1 Corinthians 3:13–15; Matthew 12:32; 2 Maccabees 12:44–46; Revelation 21:27).

Jesus warned His disciples not to seek titles out of pride or to claim authority that belongs to God alone. He was condemning hypocrisy and spiritual arrogance, not the legitimate use of titles that express real relationships in the life of the Church.

Scripture itself frequently uses the language of spiritual fatherhood. St. Paul describes himself as a father to the Christians he brought to the faith and speaks of guiding believers as children in Christ.

Catholic priests are therefore called “Father” because they share in this pastoral and spiritual fatherhood within the Church, caring for the faithful and helping to bring new life in Christ through the preaching of the Gospel and the sacraments (1 Corinthians 4:14–15; 1 Thessalonians 2:11; Acts 7:2).

The Catholic Bible contains the books received in the canon handed down in Christian worship from antiquity. The Old Testament of the early Church was received in the wider Greek tradition commonly used among many Jews of the diaspora and by many early Christians, including the books now called Deuterocanonical.

These books were read in the life of the Church and affirmed in the canon received by Catholics. During the Reformation, some rejected these books and placed them outside the canon, resulting in a shorter Old Testament in many Protestant Bibles (1 Timothy 3:15; Luke 24:44).

God is the author of Sacred Scripture, and under the guidance of the Holy Spirit the Church recognized and authoritatively defined which books belong to the biblical canon.

The inspired books did not come with a table of contents. The Church preserved the apostolic writings, distinguished them from other religious texts, and confirmed the canon for the faithful. The Church therefore did not create Scripture but faithfully recognized and safeguarded the books inspired by God (1 Timothy 3:15; 2 Peter 3:15–16).

Baptism is the new birth in Christ and entrance into the covenant. Because it is a gift of grace rather than a reward for personal achievement, it should be given to children as well as adults.

Scripture records entire households being baptized and presents baptism as the fulfillment of circumcision in the new covenant (Acts 16:15; Acts 16:33; Colossians 2:11–12; Mark 10:13–16).