Acts

Acts — This sequel to the life of Christ follows the ministry of the apostles following Jesus’ ascension. The Holy Spirit arrives to fill and empower Jesus’ followers, who begin to preach the gospel in the midst of mounting persecution. Paul, a former enemy of the Christians, is converted and called by Christ as an apostle. The church begins in Jerusalem, expands to Samaria, and spreads to the Roman world.
Source: GotQuestions.org