The Mission chapter follows the apostolic generation as the gospel runs from Jerusalem to Rome. Three missionary journeys of Paul, the labor of Peter and John and James, the letters that become the bulk of the New Testament, and the slow weaving of a network of churches around the Mediterranean. The Atlas treats this chapter geographically because the routes the apostles walked are the routes the gospel ran, and the cities they founded churches in are the cities the New Testament's letters were written to.
Paul's first missionary journey begins from Antioch with Barnabas and John Mark. They sail to Cyprus, then cross to the mainland of Asia Minor at Perga in Pamphylia, head up into the highlands of Pisidia and Lycaonia — Pisidian Antioch, Iconium, Lystra, Derbe — and return by the same cities to strengthen the new churches. John Mark leaves them at Perga; Paul's pattern of working from city to city, preaching first in the synagogue and then to the Gentile God-fearers when the synagogue resists, is established on this trip. The chapter notes that the cities are linked by Roman roads — the Via Sebaste runs through southern Galatia — and that the New Testament mission is, among other things, an unintended consequence of imperial road-building.
The Jerusalem Council in Acts 15 is the chapter's first hinge. A faction from Judea has come to Antioch insisting that Gentile converts must be circumcised and keep the law of Moses. Paul and Barnabas are sent up to Jerusalem to address the question. Peter rises and recalls Cornelius. Paul and Barnabas tell what God has done among the Gentiles through their ministry. James, the brother of the Lord and bishop of Jerusalem, gives the verdict: we should not trouble those of the Gentiles who turn to God, but should write to them to abstain from things polluted by idols and from sexual immorality and from what has been strangled and from blood. The decision settles the legal question that could have split the Church in its first generation.
Paul's second missionary journey begins with a separation. Paul and Barnabas disagree over John Mark and part ways. Paul takes Silas; they revisit the Galatian churches; the Holy Spirit forbids them to preach in Asia and in Bithynia; Paul has the night vision of the Macedonian man begging him to come over. The chapter pauses here. The gospel is about to cross from Asia into Europe, and the Atlas marks the moment. Philippi — a Roman colony in Macedonia, where Paul converts Lydia the seller of purple, casts the python-spirit out of the slave girl, and is jailed and miraculously released — is the first European church. Thessalonica, Berea, Athens, Corinth — the journey continues, and each city becomes either a future letter or a future church (or both).
Paul at the Areopagus in Athens (Acts 17) is the chapter's most-cited moment of cultural engagement. Faced with a city full of idols and a philosophical audience that wants to hear the new teaching, Paul does not denounce — he reasons. He cites the inscription to the unknown god as a starting point. He quotes the Greek poets Epimenides and Aratus. He preaches the resurrection. The Atlas reads this sermon as the template for Christian engagement with the philosophical and religious other: take what is true, name what is missing, point to Christ, leave the verdict with the hearer.
Paul at Corinth establishes a church that will give him two of his richest letters. He works as a tentmaker with Aquila and Priscilla; he reasons in the synagogue every Sabbath; he stays a year and a half. The Corinthian correspondence — 1 and 2 Corinthians — addresses divisions, sexual ethics, lawsuits, marriage, idols, head coverings, the Lord's Supper, spiritual gifts, the resurrection, and the collection for the saints in Jerusalem. The Atlas notes that the Corinthian church is a microcosm of every later church's struggles, and that Paul's pastoral response — patient, theological, blunt — has shaped Christian leadership ever since.
The third missionary journey centers on Ephesus. Paul spends two years and three months teaching in the lecture hall of Tyrannus; the word of the Lord spreads through all Asia; books of magic worth fifty thousand silver coins are burned publicly; the silversmiths of Artemis riot in the great theater. Ephesus becomes the eastern Aegean center of the mission, and the Pauline letters of the captivity — Ephesians, Colossians, Philippians, Philemon — are likely sent to this region during the imprisonment that follows. The Johannine literature in its final form is traditionally associated with Ephesus as well.
Paul's journey to Rome occupies the chapter's last quarter. After his arrest in Jerusalem (Acts 21), the two years of imprisonment in Caesarea Maritima (Acts 23-26), the hearings before Felix, Festus, and Agrippa, the appeal to Caesar, the storm and shipwreck off Malta, the slow journey to Rome — these are not legal proceedings interrupted by a sea voyage; they are the apostolic mission's final long sermon. Paul preaches Christ to procurators and to a king, on a foundering ship, and in the imperial capital. He arrives in Rome in chains and is allowed to live there for two years in his own hired house, welcoming all who come to him, preaching the kingdom of God and teaching about the Lord Jesus Christ with all boldness and without hindrance (Acts 28:31). Acts ends without giving us the verdict of Paul's trial; the Atlas notes that this is deliberate.
The Petrine and Johannine missions run alongside the Pauline. Peter's letters address Christians scattered across northern Asia Minor — Pontus, Galatia, Cappadocia, Asia, Bithynia (1 Pet 1:1) — and prepare a community already under social pressure for the persecution that is coming. The Johannine letters address a community in or near Ephesus that has been wounded by an early form of docetism — the denial that Christ has come in the flesh — and call them back to love and to the bodily reality of the Incarnation. The letter of James, the letter of Jude, the letter to the Hebrews each address other corners of the same scattered first-generation network.
Chapter 11 closes with the destruction of the temple in AD 70. The chapter has not narrated the event because Acts ends before it; but the Atlas treats it as the end of an era. The temple cult is gone. The synagogue inheritance becomes the matrix in which rabbinic Judaism is being forged. The early Christian centers — Jerusalem, Antioch, Ephesus, Rome — have become a network that no longer needs the temple, because the body of Christ is the temple and the Spirit is poured out on all flesh. The mission has not ended; it has only begun. But the apostolic generation is passing, and the next chapter — Chapter 12, New Creation — looks forward to the consummation toward which everything in the Atlas has been leaning.