The Roman Catholic Church’s claim to be the first church is historically unfounded. The church began in Acts 2:1–4, 41–47 after Jesus ascended and the Holy Spirit came upon the disciples. It was defined as the “body of Christ” (1 Corinthians 12:12–13), referring to all true believers as being the church. As believers met in various locations, local churches formed, led by a plurality of elders (Acts 14:23; Titus 1:5).
The RCC grounds its claim on Peter’s statement in Matthew 16:18–19, arguing that Jesus established the papal office in him and that this authority has been passed down through successors. However, Matthew 16 doesn’t teach a papal office; it refers to Peter’s confession that Jesus is Lord. It is that confession upon which Jesus is building His church.
The bishop of Rome gradually gained prominence, especially after the 4th century. Papal supremacy developed over centuries, and the fall of the Western Roman Empire severed Rome's ties to other Christian thought, narrowing its doctrine and influence. Eventually, Rome claimed to be the only true church.
While the RCC has roots in biblical Christianity, it claims greater authority than Jesus gave any local church, interprets history in ways many historians dispute, and holds doctrine at odds with Scripture.
How did RCC get to the point of making such a strong claim of preeminence? It was the result of slow, gradual changes in both church governance and political forces. In the second century, there was concern about having a single leader over a region of churches to ensure they all remained faithful. At that time the office “bishop” began to separate from meaning the same thing as elder and pastor, with “bishops” placed over regions.
By the fourth century, many churches had specific bishops who were beginning to gain authority over the other bishops. The key cities for these men were Rome, Antioch, Alexandria, Constantinople, and Jerusalem. Additionally, whereas in the first three centuries Christians were persecuted by the state, in the fourth century, Constantine legalized Christianity. That led to Christian leaders becoming more powerful and influential over the government.
When the Roman Empire came under attack, it was a Christian leader from Rome, Pope Leo I, who negotiated with the enemy, led by Attila the Hun. That resulted in Rome’s papal influence in the government growing even further. After the Western Roman Empire finally fell and Rome became detached from other major Christian centers, the Roman Papacy began to view itself as superior to other Christian leaders and to consolidate power under one man.
Over the centuries, doctrines such as Peter as the first Pope, Papal infallibility, and the RCC as the only true church were developed. Thus, RCC’s claims to be the first and only true church reflected later theological developments and cannot be supported by early church history.
Although the RCC is not the first true church, true Christians may be within that organization. Anyone who holds to the biblical gospel of faith in Jesus is part of the body of Christ and, thus, a part of the church. What matters is faithfulness, not pedigree. In Revelation, Jesus spoke of being ready to take the title “church” away from cities where faithfulness has vanished (Revelation 2:5; Revelation 3:16). They existed before the churches in Rome, yet being “first” didn’t mean anything. Jesus demands that His people be faithful.
We must find and be part of a local church whose “claim to fame” is that it’s trying its best to be faithful. No church will be perfect. But run from any church that claims that its “bloodline” of tradition is what makes it a church! Tradition doesn’t always mean soundness.