4️⃣ Baptism in the Book of Acts

The Apostolic Practice of True Baptism

The Book of Acts provides the historical record of how the apostles obeyed the commission given by the risen Lord. While the Gospels establish the command to baptise, Acts demonstrates how that command was implemented as the gospel spread from Jerusalem to the nations.

Acts should therefore be read as a theological history. Luke does not merely record isolated conversions; he traces the fulfilment of Jesus' promise that His witnesses would proclaim the gospel "in Jerusalem, and in all Judea and Samaria, and to the ends of the earth" (Acts 1:8).

This geographical expansion also provides the framework for understanding the various baptism accounts. Some events are unique because they mark important stages in salvation history, while others illustrate the ordinary pattern of conversion and discipleship.

Recognising this distinction prevents readers from treating every historical detail as a universal requirement while still allowing Acts to inform doctrine.

Pentecost

The Beginning of the New Covenant Community

The first true baptisms following Jesus' resurrection occurred on the Day of Pentecost (Acts 2).

Peter proclaimed that Jesus, whom the people had crucified, had been raised by God and exalted as both Lord and Messiah.
His hearers were deeply convicted and asked:

Peter replied:

This verse deserves careful consideration because it has often been interpreted in different ways.

Repentance Comes First

Peter's first command is repentance. Throughout both the Old and New Testaments, repentance signifies turning to God in faith and abandoning rebellion against Him. Baptism follows this response. The order reflects the same pattern already established by John the Baptist and affirmed by Jesus.

Baptism and Forgiveness

The relationship between baptism and forgiveness has generated considerable theological discussion. The wider New Testament repeatedly teaches that forgiveness is received through faith in Jesus (John 3:16; Acts 10:43; Romans 3:21–28; Ephesians 1:7; Colossians 1:13–14). Accordingly, Peter's words should not be isolated from the broader teaching of Scripture. His emphasis is that those who repent and publicly identify themselves with the crucified and risen Messiah receive the blessings of the New Covenant, including forgiveness and the gift of the Holy Spirit. Luke is describing the complete response expected of those who accepted the apostolic message.

Immediate Obedience

Luke records:

Notice the sequence. They accepted the gospel. They were baptised. They joined the fellowship of believers. There is no indication of unnecessary delay. At the same time, baptism follows acceptance of the message rather than preceding it.

A New Community

Immediately after baptism the believers devoted themselves to:

• ♦️ the apostles' teaching;
• ♦️ fellowship;
• ♦️ the breaking of bread; and
• ♦️ prayer.

This observation is frequently overlooked. Acts presents baptism as the beginning of participation in the visible life of the Church rather than as the culmination of a believer's experience.

Samaria

Unity Between Jews and Samaritans

Acts 8 records the spread of the gospel into Samaria. Historically, relations between Jews and Samaritans had been marked by centuries of hostility. The conversion of the Samaritans therefore represented a major development in God's redemptive plan.

Luke records that many believed Philip's preaching concerning the kingdom of God and the name of Jesus. Men and women were baptised (Acts 8:12). Later, Peter and John travelled from Jerusalem and prayed for these new believers because the Holy Spirit had not yet come upon them in the same way experienced at Pentecost. The apostles laid their hands upon them, and they received the Holy Spirit (Acts 8:14–17).

Why the Delay?

This passage has generated considerable discussion. Some have concluded that all believers should expect a delay between conversion and receiving the Holy Spirit. However, several considerations suggest that this event is exceptional rather than normative.

First, Acts records a unique historical transition. For the first time, a people long separated from the Jewish community are fully incorporated into the Church. Secondly, the presence of Peter and John visibly demonstrates to both Jews and Samaritans that there is now one united people of God rather than two competing communities. The delay therefore serves an important redemptive-historical purpose. Subsequent conversion accounts in Acts do not consistently follow this pattern. Accordingly, this passage should be interpreted within its historical context rather than transformed into a universal rule governing every conversion.

The Ethiopian Official: Faith before Baptism

Acts 8 continues with the conversion of an Ethiopian court official travelling home from Jerusalem. Philip explained Isaiah 53 and proclaimed the good news about Jesus (Acts 8:35). As they travelled, they came to water. The official asked:

Philip baptised him immediately. Several observations emerge: The initiative arose from the convert himself. The gospel had already been explained. Faith preceded baptism. The baptism publicly expressed the faith already present. Afterwards the official continued his journey rejoicing, demonstrating the joy that accompanies reconciliation with God.

Saul of Tarsus: Baptism Following Conversion

Saul's dramatic encounter with the risen Jesus occurred on the road to Damascus (Acts 9). Following three days of blindness, Ananias came to him. Saul regained his sight, received the Holy Spirit, and was baptised (Acts 9:17–18). Later Paul would recount Ananias' words:

This language should again be interpreted alongside the wider New Testament. Paul consistently teaches justification by faith apart from works of the Law (Romans 3–5; Galatians 2-3). Consequently, the washing imagery reflects what baptism symbolises rather than attributing cleansing power to the water itself. The outward washing points to the inward cleansing accomplished by God through Jesus.

Cornelius: The Gospel Reaches the Gentiles

Acts 10 marks another decisive turning point. Cornelius, a Roman centurion, became the first clearly identified Gentile convert whose household entered the Church without first becoming Jewish proselytes. While Peter was still preaching, the Holy Spirit came upon those listening to the message (Acts 10:44–46). Only afterwards did Peter declare:

This sequence differs from Pentecost. Here the Holy Spirit is given before baptism. The purpose is clear: God Himself demonstrates beyond dispute that Gentiles are accepted on exactly the same basis as Jewish believers. Water baptism follows as the visible acknowledgement of what God has already done. Peter later explained this event to the believers in Jerusalem, concluding that he could not oppose what God had clearly established (Acts 11:15–17).

Lydia: The First European Convert

Acts 16 introduces Lydia, a merchant from Thyatira. Luke records that:

This statement highlights an important theological truth. Faith ultimately results from God's gracious work within the human heart. Lydia believed. She and her household were baptised. The narrative gives no indication that baptism itself produced faith. Rather, it followed God's work of opening her heart to receive the gospel.

The Philippian Jailer: Faith and Immediate Baptism

Later that same chapter, an earthquake opened the prison doors. The jailer asked one of the most important questions recorded in Scripture:

Paul answered:

Luke then records that Paul and Silas explained the word of the Lord to everyone present. Only afterwards were the jailer and his household baptised (Acts 16:32–33). The sequence remains consistent. The gospel is proclaimed. Faith is exercised. Baptism follows.

Corinth: Belief before Baptism

Acts 18 summarises Paul's ministry in Corinth. Luke writes that Crispus, the synagogue leader, believed in the Lord together with his household. Many Corinthians who heard Paul "... believed and were baptised." (Acts 18:8). Again, Luke consistently associates baptism with those who have responded to the gospel in faith.

Ephesus: John's Baptism and Disciple Baptism Distinguished

Acts 19 records perhaps the clearest distinction between John's baptism and disciple baptism. Paul encountered disciples who had received only John's baptism. When asked about the Holy Spirit, they revealed that their understanding remained incomplete. Paul explained that John's baptism pointed forward to Jesus. Upon hearing the full gospel, they were baptised in the name of the Lord Jesus (Acts 19:1-7). This account confirms that John's baptism and disciple baptism are not identical. John's ministry prepared people for the Messiah. Disciple baptism identifies believers with the crucified, risen, and exalted Lord.

The Pattern That Emerges

When the baptism accounts in Acts are considered together, several consistent principles become apparent:

• ♦️ The gospel is proclaimed before baptism.
• ♦️ People respond in repentance and faith.
• ♦️ Baptism publicly identifies believers with Jesus.
• ♦️ Those baptised become part of the visible fellowship of the Church.

The apostles consistently distinguish John's preparatory baptism from disciple baptism. At the same time, Acts also records several unique transitional events associated with the inclusion of Jews, Samaritans, Gentiles, and disciples of John into one unified body of Jesus. These events should be understood within the unfolding history of redemption rather than treated as mandatory patterns for every generation. Thus, while Acts provides the historical model for true baptism, its narratives must always be interpreted alongside the doctrinal teaching found in the Epistles.

Transition to the Epistles

The Book of Acts records what the early Church did. The Epistles explain what baptism means. This distinction is vital. Historical narrative demonstrates apostolic practice, while apostolic teaching provides the theological interpretation of that practice. Consequently, the next chapter will move from history to doctrine, examining how Paul, Peter, and the other New Testament writers explain the spiritual significance of baptism for every believer.

Looking Forward: In the next section on Romans 6, Colossians 2, Galatians 3, and 1 Peter 3, there is an explicit distinction between: what the biblical text states, the major interpretations held by evangelical scholars, and the conclusion that most naturally follows from the immediate context. This is done particularly for readers from different theological traditions, while still allowing the study to present and defend its conclusions from Scripture.