The Early Church began on the Day of Pentecost, when the Holy Spirit came upon the disciples as Jesus had promised (Acts 2, KJV). Empowered by the Holy Spirit, the apostles boldly preached the gospel, and about 3,000 people believed and were baptized that day. The early Christians devoted themselves to the apostles' teaching, fellowship, prayer, and caring for one another, while the gospel spread rapidly throughout Jerusalem and beyond. Despite persecution, the Church continued to grow as believers carried the message of Jesus across Judea, Samaria, and the Roman Empire. Through the ministries of apostles such as Peter, John, James, and Paul, new churches were established, forming the foundation of Christianity. The Early Church marks the beginning of the global mission to proclaim the good news of Jesus Christ to all nations.