Acts: how the gospel went from Jerusalem to the ends of the earth
A guide to the book of Acts: who wrote it and why, how it follows the promise of Acts 1:8, its key passages, and how the risen Christ works through his church.
Acts is the second half of Luke’s two-volume history, and it tells what happened after Jesus rose and returned to heaven. In its opening chapter the risen Jesus promises his followers that they will receive the Holy Spirit and be his witnesses in Jerusalem, in Judea and Samaria, and to the ends of the earth. The rest of the book shows that promise coming true. The Spirit comes at Pentecost, the church is born, Peter and John preach in Jerusalem, persecution scatters believers into the surrounding regions, a violent enemy named Saul meets the risen Jesus and becomes the apostle Paul, and the gospel travels through Asia Minor and Greece until Paul is preaching in Rome itself. Acts is the bridge between the Gospels and the letters, and it answers a simple question: what does Jesus do now that he is no longer visibly on earth? The answer is that he keeps working, by his Spirit, through ordinary people.
Who wrote Acts, and when
Acts opens by addressing Theophilus and referring back to a first book about all that Jesus began to do and to teach, up to the day he was taken up to heaven (Acts 1:1–2). That first book is the Gospel of Luke, and the same author wrote both. The traditional view, held from the second century, is that this was Luke, the physician and companion of Paul. Several passages in the second half of Acts switch from “they” to “we,” which reads most naturally as the author’s own travel notes.
The date is discussed. Acts ends with Paul under house arrest in Rome, about the year 62, and says nothing about his trial, his death, or the fall of Jerusalem. Many take this as evidence that Luke finished writing around then. Others, noting that Luke’s Gospel likely used Mark, date Acts to the 70s or 80s. Faithful Christians hold both views. Either way, the book was written by someone with access to eyewitnesses and, in places, was an eyewitness himself.
Why Acts was written, and for whom
Luke wrote so that Theophilus, and readers like him, could be certain of what they had been taught (Luke 1:4). Acts extends that certainty to the church. It shows that the Christian movement did not begin as a human idea but as the work of the risen Jesus through his Spirit, that its message was the same whether preached by Peter or Paul, and that it welcomed Gentiles without abandoning Israel’s Scriptures. Some readers also see in Acts a case that Christians were peaceful, law-abiding people, since Roman officials repeatedly find no fault in them.
How the book is structured
Jesus’ words in the first chapter give the outline of the whole book.
But you will receive power when the Holy Spirit comes upon you, and you will be My witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”
— Acts 1:8 (BSB)
- Jerusalem (1:1–7:60): the ascension, Pentecost, the first sermons, the shared life of the church, conflict with the authorities, and the death of Stephen.
- Judea and Samaria (8:1–12:25): persecution scatters the believers (Acts 8:1), Philip preaches in Samaria and to an Ethiopian official, Saul is converted, and Peter learns that Gentiles are welcome.
- To the ends of the earth (13:1–28:31): Paul’s three missionary journeys, the council in Jerusalem, his arrest, his trials, his shipwreck, and finally his arrival in Rome.
The center of gravity shifts from Peter in the first half to Paul in the second, and the geography moves steadily outward.
Key passages to know
Pentecost and Peter’s first sermon (2:38–39)
Fifty days after Passover, the Spirit comes with wind and fire, and Peter explains what it means: God has raised Jesus, exalted him to his right hand, and Jesus has poured out the Spirit they can now see and hear (Acts 2:32–33). The crowd asks what they should do, and Peter tells them.
38 Peter replied, “Repent and be baptized, every one of you, in the name of Jesus Christ for the forgiveness of your sins, and you will receive the gift of the Holy Spirit. 39 This promise belongs to you and your children and to all who are far off—to all whom the Lord our God will call to Himself.”
— Acts 2:38-39 (BSB)
Everything the church would later preach is already here: repentance, baptism, forgiveness through Jesus, the gift of the Spirit, and a promise that reaches to those far away.
The first church (2:42)
Luke gives a snapshot of what the new believers did with their days.
They devoted themselves to the apostles’ teaching and to the fellowship, to the breaking of bread and to prayer.
— Acts 2:42 (BSB)
Teaching, fellowship, the Lord’s Supper, prayer. Every healthy church since has been built on the same four things. They also shared what they had so that no one among them was in need (Acts 4:32).
No other name (4:12)
Arrested for healing a lame man, Peter tells the rulers of Jerusalem where salvation is found.
Salvation exists in no one else, for there is no other name under heaven given to men by which we must be saved.”
— Acts 4:12 (BSB)
Saul meets Jesus (9:4–5)
4 He fell to the ground and heard a voice say to him, “Saul, Saul, why do you persecute Me?” 5 “Who are You, Lord?” Saul asked. “I am Jesus, whom you are persecuting,” He replied.
— Acts 9:4-5 (BSB)
Notice the question. Saul was hunting Christians, and Jesus asks why Saul is persecuting him. The risen Lord is so joined to his people that what is done to them is done to him.
The gospel for Gentiles (10:34–35)
When a Roman officer named Cornelius sends for Peter, Peter has to be shown three times in a vision that God is not limited to one people.
34 Then Peter began to speak: “I now truly understand that God does not show favoritism, 35 but welcomes those from every nation who fear Him and do what is right.
— Acts 10:34-35 (BSB)
This moment opens the door for everything that follows in Paul’s mission.
Paul in Athens (17:24–25)
Speaking to philosophers who had never heard of Moses, Paul begins with creation.
24 The God who made the world and everything in it is the Lord of heaven and earth and does not live in temples made by human hands. 25 Nor is He served by human hands, as if He needed anything, because He Himself gives everyone life and breath and everything else.
— Acts 17:24-25 (BSB)
Acts shows the same message adapted to very different listeners: Jews in synagogues hear about promises fulfilled, Gentiles in the marketplace hear about the God who made them and will judge them through the man he raised from the dead.
The main themes of Acts
The Holy Spirit. The Spirit fills, sends, guides, comforts, and speaks. The book has sometimes been called the Acts of the Holy Spirit, and the title fits.
Witness. The apostles do not argue people into the kingdom; they testify to what they have seen. The resurrection is at the center of every sermon.
The gospel crosses every boundary. Samaritans, an Ethiopian, a Roman officer, philosophers in Athens, a jailer in Philippi, a businesswoman in Thyatira: Acts is a record of walls falling. Salvation is by faith in Jesus alone, for anyone (Acts 13:38–39, Acts 16:31).
Boldness under pressure. Beaten and ordered to stop preaching, the apostles reply that they must obey God rather than men (Acts 5:29). Persecution does not stop the church; it spreads it.
Prayer and the Scriptures. The believers pray before every decision, and they test what they hear against the Scriptures. Luke praises the Bereans for doing exactly that (Acts 17:11).
How Acts points to Christ
Acts is not really the story of the apostles. Luke says the Gospel recorded what Jesus began to do, which means Acts records what he continued to do. Jesus is present on every page: he pours out the Spirit, he stands to receive Stephen, he speaks to Saul on the road, he directs Paul’s journeys, and he stands by Paul in prison. Every sermon in the book is about him: crucified, raised, exalted, and coming to judge.
Acts also shows what the death and resurrection of Jesus accomplish. Because he is risen, forgiveness of sins is preached in his name, the Spirit is given, and the promise to Abraham that all nations would be blessed is finally being kept. Paul sums up his own life in one sentence.
But I consider my life of no value to me, if only I may finish my course and complete the ministry I have received from the Lord Jesus—the ministry of testifying to the good news of God’s grace.
— Acts 20:24 (BSB)
How to read Acts well
Read it as a story. Acts has narrative momentum, and it is at its best read in long stretches. Two or three chapters at a sitting is a good pace; the whole book takes about a month at a chapter a day.
Keep a map nearby. The place names matter, and watching the gospel move from Jerusalem outward is part of the point.
Distinguish description from prescription. Acts tells us what happened, not always what must happen everywhere. Believers in Jerusalem shared their possessions; that is a beautiful example, not a law. Tongues of fire came at Pentecost; that was a unique event, not a template. The safest rule is to let the letters interpret the narrative and to treat as binding what the apostles command, not simply what they experienced.
Watch the speeches. About a third of Acts is sermons and speeches. Read them slowly. They are the earliest summaries of the Christian message we have.
A common misreading is to romanticize the early church as flawless. Acts records dishonesty, ethnic tension, a sharp quarrel between Paul and Barnabas, and long arguments about Gentiles. The church has never been perfect, only forgiven and sent.
Where Christians differ
Faithful Christians differ on how the Spirit’s work in Acts relates to the church today: whether the gifts described there, such as tongues and prophecy, continue in the same form, and whether the coming of the Spirit on believers in chapters 2, 8, 10, and 19 describes a normal pattern or a set of one-time events marking the gospel’s spread. They also differ on baptism, which Acts records for adults who profess faith and, in the case of several households, for whole families. The site’s leaning is that Acts describes the unique founding of the church while showing patterns of prayer, witness, and generosity that remain the standard for every generation.
Where to go from here
Acts ends with Paul preaching the kingdom of God freely in Rome (Acts 28:30–31), and the book stops without a conclusion because the story is not over. It continues in every local church where the same gospel is taught, the same Spirit is at work, and the same Lord is worshiped. The best next step is to pray for that kind of church, join one, and read Acts alongside the guide to Luke, its first volume, and the guide to Romans, the fullest letter Paul wrote on the way to the city where Acts ends.