Acts Bible Study: The Spirit, Witness, and Welcoming the Nations

Read three connected sessions rather than isolated examples

Session 1 covers Acts 1–2: the risen Jesus’ instruction, the waiting community, Pentecost, Peter’s proclamation, and the shared life that follows. Session 2 reads Acts 10 and the meeting of Peter and Cornelius. Session 3 reads Acts 15, including both the Jerusalem decision and the disagreement near the chapter’s end.

These selections trace important developments in witness and welcome. They do not include every event between Jerusalem and the later chapters. Read the intervening narrative as you continue studying, rather than assuming the four selected chapters are a complete history of the mission.

Keep three columns in your notes: what God does, how people respond, and what the community learns. Cite a verse for each observation. The distinctions help you avoid treating a person’s first assumption as the conclusion of the whole account.

The word witness will recur. Notice what the apostles claim to have seen and heard about Jesus, and how that testimony differs from a general expression of goodwill. Also notice the acts of care, hospitality, teaching, and prayer that accompany speech.

For each session, begin with the complete reading and then use the explanations. The questions are meant to help you observe and reason from the passage. The guidance offers a way to compare your answer with the text, while leaving room to return to details that need more attention.

Session 1: the risen Jesus gives a task and tells the disciples to wait

Read Acts 1–2. Acts begins by addressing Theophilus and referring to the earlier account of what Jesus began to do and teach. It describes Jesus showing himself alive after his suffering, appearing over forty days, and speaking about the kingdom of God (1:1–3).

The apostles are commanded to remain in Jerusalem and wait for the Father’s promise. Jesus speaks of the coming gift of the Holy Ghost (1:4–5). The instruction to wait belongs to their obedience; urgency about the mission does not make it unnecessary.

They ask whether the kingdom will be restored to Israel at this time. Jesus answers that the times and seasons are within the Father’s authority, then tells them that they will receive power through the Holy Ghost and be his witnesses in Jerusalem, Judaea, Samaria, and to the ends of the earth (1:6–8).

The answer redirects attention from a timetable they are not given to the responsibility they are given. It does not require us to claim that every part of their hope for Israel has been erased. The explicit task is witness to Jesus, with a widening geographical reach and dependence on the Spirit.

After Jesus is taken up, the two men in white speak of his coming again. The disciples return to Jerusalem (1:9–12). Looking toward his return and attending to the work before them belong together. The chapter gives hope without making speculation about dates their assignment.

Prayer and the choice of Matthias concern a continuing witness

The group gathers in prayer with the women, Mary the mother of Jesus, and Jesus’ brothers (1:13–14). The people named and included matter. The opening community should not be pictured as only a set of isolated male leaders making plans without shared prayer.

Peter then addresses the place left by Judas. The account names Judas’s participation in the ministry, his betrayal, and his death, and Peter uses Scripture in explaining the need for another to take his place (1:15–20). The wrongdoing is stated seriously without needing to linger over the violent details.

The proposed witness must have accompanied them through Jesus’ ministry from John’s baptism to the ascension and become a witness with them to the resurrection (1:21–22). These are particular qualifications for the vacancy being addressed. They should not be generalized into a claim that every later form of service requires the same personal history.

Joseph called Barsabas, surnamed Justus, and Matthias are put forward. The group prays to the Lord who knows hearts, casts lots, and Matthias is numbered with the eleven (1:23–26). The sequence combines stated qualifications, prayer, and a decision within this episode.

A reader can learn from the seriousness of entrusted responsibility without turning the method into a command to settle every modern decision by lots. The passage tells what this community does for this particular task. Its concern is continuity in the witness to the risen Jesus.

Pentecost makes the works of God heard across languages

At Pentecost, the gathered people hear a sound from heaven like a powerful rushing wind, see tongues like fire, and are filled with the Holy Ghost. They speak in other tongues as the Spirit gives them utterance (2:1–4). The comparisons to wind and fire should be reported as the text gives them, without adding a description of burning bodies or physical damage.

The hearers include devout Jews from many nations, and the account also names proselytes among the visitors. They hear the speakers declaring God’s wonderful works in their own languages (2:5–11). The list of places makes the breadth of the hearing concrete.

The crowd’s responses differ. Some are amazed and ask what this means; others mock and attribute it to wine (2:12–13). The event does not eliminate the need for explanation. Peter stands with the eleven and addresses what the people have seen and heard.

He quotes Joel’s words about the Spirit poured out on sons, daughters, young, old, servants, and handmaidens, with prophecy, visions, dreams, and the call on the Lord’s name (2:16–21). Read the breadth of that language rather than narrowing the promise to the most publicly prominent people in the scene.

For reflection, notice that being heard across a boundary is more than making a louder sound. The narrative describes hearers recognizing words in their own tongues. A practical response can include the patience to communicate clearly and listen to whether another person has actually understood.

Peter’s explanation centers on the crucified and risen Jesus

Peter’s sermon moves from the Spirit’s outpouring to Jesus of Nazareth. He speaks of the works God did through Jesus, his death, and God raising him from the dead (2:22–24). The resurrection is central to the explanation of the event before the crowd.

Verse 23 holds God’s counsel and foreknowledge together with the wrongdoing of those involved in the crucifixion. The account should not be rewritten so that human responsibility disappears, nor embellished into a picture of God delighting in cruelty. Peter states the death and turns to the divine act of raising Jesus.

He then reasons from David’s words and the promise concerning his descendant, explaining the quoted language in relation to Christ’s resurrection (2:25–31). Peter distinguishes David, whose tomb is known, from the risen Jesus to whom the apostolic witnesses testify.

Verse 33 names Jesus exalted at God’s right hand, receiving the Father’s promise of the Holy Ghost, and pouring out what the crowd now sees and hears. The speech joins Father, Jesus, Spirit, resurrection, and the visible event without requiring an added philosophical account beyond the passage.

The conclusion declares Jesus Lord and Christ (2:36). The witness is not a general message that extraordinary experiences are meaningful in themselves. Peter gives the experience its direction through the identity and work of Jesus. Read the opening signs and the sermon as parts of one account.

The response includes repentance, baptism, the Spirit, and continuing life together

The hearers are pierced in heart and ask what they should do. Peter answers with repentance and baptism in Jesus Christ’s name for the remission of sins, and the promise of the Holy Ghost (2:37–38). The elements belong together in the reply; none should be edited out because another receives more attention in a retelling.

Peter speaks of the promise for his hearers, their children, and those afar off whom the Lord calls (2:39). Those who receive the word are baptized, and about three thousand are added that day (2:41). Keep the approximate number as the account gives it rather than treating it as an attendance target for every gathering.

The next verses describe continuing in the apostles’ teaching, fellowship, breaking bread, and prayers. They also describe shared resources directed toward people’s needs, daily gathering in the temple, meals in homes, praise, and the Lord adding to the community (2:42–47).

These activities make the response more than a single moment of excitement. Teaching, worship, eating together, and practical care shape an ongoing life. The temple remains a meaningful place of gathering, alongside the homes where meals are shared.

For application, ask what happens after a person is welcomed. Is there patient teaching? Are needs noticed? Is prayer shared? The passage invites attention to a community’s practices as well as its public message, without claiming that every detail supplies a complete administrative system for every setting.

Session 2: Cornelius is directed toward an encounter

Read Acts 10. Cornelius is introduced as a centurion in Caesarea, devout, fearing God with his household, generous in alms, and persistent in prayer (10:1–2). The narrative describes those practices positively before Peter arrives.

An angel tells him that his prayers and alms have come before God as a memorial and instructs him to send for Simon Peter, staying with Simon the tanner in Joppa (10:3–6). The two Simons are distinct people in the account: Peter is the one to be summoned, and the tanner is his host.

Cornelius tells two household servants and a devout soldier what happened and sends them (10:7–8). His response is neither an abstract feeling of inclusion nor an attempt to control the entire encounter. He carries out a concrete instruction and waits for someone he has been told to hear.

The positive description of his prayer and generosity should not be erased in order to make Peter’s later preaching important. The story holds the acknowledged good and the need for further hearing together. Peter’s arrival will bring a specific message concerning Jesus.

For reflection, notice the willingness to receive a word through another person. Cornelius is already acting with devotion, yet the account presents further learning as significant. Existing faithfulness need not become a reason to refuse what God may still call someone to hear and do.

Peter’s vision is interpreted through the encounter that follows

While the messengers approach Joppa, Peter goes to the housetop to pray. He becomes hungry and sees a vision of a vessel like a great sheet containing animals, with a command to kill and eat (10:9–13). He objects that he has never eaten anything common or unclean.

The voice replies that he must not call common what God has cleansed. This occurs three times, and Peter is still considering what it means when the messengers arrive (10:14–17). Acts does not depict him as having instantly resolved every implication.

The Spirit tells him that three men seek him and that he should go with them, because the Spirit has sent them (10:19–20). Peter listens to their explanation, welcomes them as guests, and travels with them and some believers from Joppa (10:21–23).

At Cornelius’s house, Peter states the lesson he has learned: God has shown him not to call any person common or unclean (10:28). Let that explicit interpretation guide the study’s main application. The chapter’s concern is the encounter with people whom Peter might previously have refused to visit.

This does not require a broad claim that every sacred distinction or God-commanded practice has become meaningless. The account gives a particular revelation and its effect on Peter’s conduct. A careful reader can attend to that effect without turning the vision into permission to discard any practice they find inconvenient.

Hospitality leads to hearing the message about Jesus

Cornelius has gathered relatives and close friends to hear Peter. When he falls at Peter’s feet, Peter raises him and says that he too is a man (10:24–26). The encounter does not make the messenger an object of worship.

Cornelius recounts the instruction he received and says that they are present before God to hear what Peter has been commanded to say (10:30–33). Peter begins by acknowledging that God is no respecter of persons and that in every nation the person who fears God and works righteousness is accepted with him (10:34–35).

Peter then proclaims peace through Jesus Christ, Lord of all. He tells of Jesus anointed with the Holy Ghost and power, doing good and healing those oppressed by the devil, his death, and God raising him on the third day (10:36–40).

The testimony includes eating and drinking with Jesus after his resurrection, his appointed role as judge of the living and dead, and forgiveness through his name for those who believe (10:41–43). Welcome is therefore connected to a substantial message about Jesus, not a claim that nothing more needs to be heard.

For study, list what Peter says about Jesus before drawing a lesson about crossing boundaries. The message gives the encounter its center. Hospitality creates room for hearing, and the witness directs attention toward the risen Lord rather than the importance of the visiting teacher.

The Spirit’s gift leads to baptism rather than making it unnecessary

While Peter is still speaking, the Holy Ghost falls on the hearers. The believers who came with him are astonished that the gift is poured out on Gentiles, whom they hear speaking in tongues and magnifying God (10:44–46).

Peter then asks whether anyone can forbid water to those who have received the Holy Ghost as they have. He commands them to be baptized in the Lord’s name (10:47–48). The narrative explicitly joins the Spirit’s gift with the response of baptism.

The order differs from the response described in Acts 2, but it should not be turned into a contest in which water or Spirit is made unnecessary. Peter recognizes what has happened and directs the people toward baptism. The account gives both their place.

The visitors are then asked to remain for a time. This small closing detail matters: the encounter extends into continued company. The boundary has been crossed in an actual household with actual people, not merely in a declaration that can be admired from a distance.

End the session by asking what evidence Peter and his companions had to attend to and how their conduct changed. Application should follow that care: listen, examine what is actually happening, and allow a truthful encounter to correct a dismissive assumption about another person.

Session 3: name the actual dispute before generalizing from it

Read Acts 15. Some who come from Judaea teach that Gentile believers cannot be saved unless circumcised according to Moses’ custom. Paul and Barnabas dispute the claim, and a group is sent to Jerusalem to the apostles and elders about the question (15:1–2).

On the way, they report the conversion of Gentiles and bring joy to believers. At Jerusalem they recount what God has done, while believers associated with the Pharisees insist on circumcision and keeping the law of Moses (15:3–5). The account presents a serious disagreement within the community.

Naming the dispute protects the reading from becoming a vague story about open-minded people defeating anyone who cares about commandments. The specific question concerns what is required of these Gentile converts in relation to salvation and membership in the believing community.

The apostles and elders gather to consider the matter, and the chapter records much discussion before Peter speaks (15:6–7). The existence of disagreement is not hidden. The response is a shared process that attends to testimony, Scripture, and the work of God.

For a modern group, a useful first practice is to state the question accurately enough that those involved recognize it. A dispute often becomes harder to resolve when it is retold as a struggle between flattering labels and insulting ones. Acts gives the reader the actual claim being considered.

The deliberation brings testimony and Scripture into the same conversation

Peter recalls that the Gentiles heard the gospel and believed through his witness, and that God gave them the Holy Ghost as to the earlier believers. He says that God made no distinction and purified their hearts by faith (15:7–9). The experience described in Acts 10 becomes relevant testimony in this later question.

He challenges imposing a yoke and declares confidence in salvation through the grace of the Lord Jesus Christ, just as the Gentiles receive it (15:10–11). The comparison does not place the Gentiles in a lesser class of recipients. Peter describes shared dependence on the same grace.

Barnabas and Paul then recount the signs and wonders God has done among the Gentiles through them (15:12). The gathering listens. Their report adds testimony of divine action to the question rather than simply repeating a preference about the policy.

James responds by connecting the account with the prophets’ words about the rebuilding of David’s fallen dwelling and the Gentiles seeking the Lord (15:13–18). Scripture is part of the deliberation. The reasoning should not be summarized as if experience makes the scriptural witness irrelevant, or as if the reported work of God is excluded from consideration.

Read the order of the speeches with care. The account’s conclusion emerges through the whole deliberation. Quoting the first disputed demand as though it were the final decision would reverse the chapter’s movement, while ignoring the later instructions would also leave the decision incomplete.

The decision is communicated with particular instructions and trusted messengers

James proposes that Gentiles turning to God should not be troubled with the disputed requirement. He also names instructions concerning pollution from idols, fornication, things strangled, and blood (15:19–20). The conclusion is not that nothing about conduct or shared life matters.

The apostles, elders, and whole church send Judas called Barsabas and Silas with Paul and Barnabas. Judas called Barsabas is the messenger in this chapter; Joseph called Barsabas was the candidate named in Acts 1:23. The shared name should not cause the two men to be merged. The letter addresses Gentile believers in Antioch, Syria, and Cilicia, corrects the claim that the troubling teachers had been authorized, and names the chosen messengers (15:22–27).

The letter says that it seemed good to the Holy Ghost and to them to lay no greater burden than the necessary things listed. It repeats abstention from food offered to idols, blood, things strangled, and fornication (15:28–29). Those instructions should be read as part of the decision rather than silently omitted from its summary.

This study does not turn the chapter into a complete ruling on every later question about food or community discipline. It follows the specific dispute, decision, and communication the narrative records. That precision helps avoid both inventing extra demands and erasing the demands actually stated.

At Antioch, the letter is read and brings encouragement. Judas and Silas, themselves prophets, strengthen the believers through further words (15:30–32). A decision is not merely announced from a distance; it is carried and explained by people who can help the community receive it.

The chapter ends with a disagreement the narrative does not conceal

After the Jerusalem decision, Paul proposes revisiting the communities where they have preached. Barnabas wants to take John Mark, while Paul objects because Mark had left them in Pamphylia and had not continued in the work (15:36–38).

Their contention becomes sharp, and they separate. Barnabas takes Mark to Cyprus; Paul chooses Silas and travels through Syria and Cilicia, strengthening the churches (15:39–41). The chapter does not supply a final statement declaring one man entirely righteous and the other entirely wrong in this disagreement.

This ending prevents a sentimental picture in which a major shared decision makes every later relationship easy. People who have worked together and witnessed God’s action can still reach a painful disagreement about a companion and responsibility.

The passage also should not be used to celebrate every division as automatically beneficial. Acts reports what happens and where the work continues; it does not command readers to imitate the sharpness of the contention. Reporting a result is different from endorsing every action that preceded it.

For reflection, distinguish the question in Acts 15:1 from the question in 15:36–38. They are different disputes with different processes and outcomes. Careful reading allows the chapter to teach about both shared discernment and the continuing difficulty of faithful relationships.

Christ connection: the witness concerns the risen Lord

Acts 1 names witness to Jesus as the task. Acts 2 proclaims him crucified, risen, exalted, Lord and Christ. Acts 10 brings that same testimony into Cornelius's house, including forgiveness through his name. Acts 15 speaks of salvation through the grace of the Lord Jesus Christ. Across the readings, the Spirit's work directs people toward Jesus and forms a community that must learn to live faithfully together. Crossing boundaries serves this witness to the risen Lord and the shared life his grace makes possible.

A response that joins truthful witness with attentive care

Review the three columns in your notes. Look for an assumption corrected by an event, a command followed, a question considered carefully, and a practice of shared life. Cite the scene rather than summarizing everything as a general lesson to be welcoming.

Choose one response within your responsibility. You might explain a passage about Jesus more clearly, listen to someone you have too quickly dismissed, share a practical resource, or help a group define a disagreement before trying to resolve it. Keep the action connected to the particular lesson you have studied.

If you teach these chapters, preserve both divine initiative and human response. The Spirit acts, people pray and speak, hearers respond, baptism is practiced, resources are shared, and questions require consideration. Removing any one of these to simplify the story can distort what Acts actually narrates.

You might pray: “Lord Jesus, help me bear truthful witness to you. Teach me to listen, welcome with care, and respond faithfully to your Spirit. Give our community patience with difficult questions and generosity toward real needs.” These suggested words are an application of the readings.

Continue reading Acts between and beyond these selections. The mission unfolds through further testimony, opposition, journeys, and conversations. The plan gives a starting route for following the story, with attention to the people through whom witness is spoken and received.

Sources and editorial note

• Acts 1

  Risen Jesus, waiting for the Spirit, witness, prayer, and the choice of Matthias.

• Acts 2

  Pentecost, Peter’s proclamation, repentance, baptism, the Spirit, and continuing shared life.

• Acts 10

  Cornelius and Peter, visions and messengers, proclamation of Jesus, the Spirit and water baptism.

• Acts 15

  The Gentile dispute, testimony and Scripture, decision and letter, encouragement, and Paul and Barnabas’s disagreement.

Prepared with AI assistance for Learn of Christ and checked against the passages and sources listed here. This revision has not received independent human scholarly review. Scripture quotations are from the King James Version unless another translation is named. Prayers and exercises are original examples.

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