Acts

The Acts of the Apostles is the second volume of Saint Luke's two-part work — the sequel that picks up where his Gospel ends and carries the story from the Mount of the Ascension to a Roman prison cell. Luke himself describes his project at the opening: “The former treatise I made, O Theophilus, of all things which Jesus began to do and to teach” — the Gospel — “Until the day on which… he was taken up” (Acts 1:1–2). Acts continues what Jesus continues to do and teach, now through the Holy Spirit poured out on his Church.

The authorship of Acts is among the most secure in the New Testament. The Anti-Marcionite Prologue, Saint Irenaeus, the Muratorian Fragment, and the unbroken patristic tradition all name Saint Luke — the beloved physician and Paul's traveling companion. The famous “we-passages” (16:10–17, 20:5–21:18, 27:1–28:16), in which the narrator suddenly switches from “they” to “we,” mark Luke as an eyewitness participant on Paul's later journeys. The book breaks off with Paul still alive in Rome, awaiting trial — a fact that has led many Catholic scholars to date Acts to about AD 62, before Paul's martyrdom; later dates up to AD 80 are also defensible.

The themes of Acts are the Holy Spirit, the universal mission of the Church, and the apostolic foundation of every Christian community. The book's outline is given by Christ himself in the opening verses: “You shall receive the power of the Holy Ghost coming upon you, and you shall be witnesses unto me in Jerusalem, and in all Judea, and Samaria, and even to the uttermost part of the earth” (1:8). Each of those four arenas structures the narrative — Jerusalem (chs. 1–7), Judea and Samaria (8–12), the Gentile world (13–21), and Rome (22–28).

Literarily, Acts is the most political and most cosmopolitan book of the New Testament. Luke moves easily between Jewish synagogues, Greek philosophical assemblies, Roman tribunals, and shipboard storms in the Mediterranean. He gives us the great speeches of Peter at Pentecost (ch. 2), Stephen before the Sanhedrin (ch. 7), and Paul on the Areopagus (ch. 17), each carefully tailored to its audience yet preaching the same one Gospel. Through it all the Holy Spirit is the protagonist — the One who falls at Pentecost, sends Philip to the Ethiopian, prevents Paul from going to Bithynia, sets apart Saul and Barnabas, and gives the verdict at the first council in Jerusalem (“It hath seemed good to the Holy Ghost and to us”, 15:28).

In Catholic life, Acts is read continuously through the seven weeks of the Easter season at daily Mass. The events of Pentecost (ch. 2) are the foundational text on the gift of the Holy Spirit and the birth of the Church (CCC 731–741, 767). The Council of Jerusalem (ch. 15) is the pattern of every later ecumenical council. The conversion of Paul (chs. 9, 22, 26) is the model of every Christian conversion. And the apostolic preaching summarized in Acts — the kerygma — is the irreducible core of Christian faith: that Jesus, crucified for our sins, is risen from the dead and has been made Lord and Christ.