Acts 2:22-41 captures Peter’s sermon on the Day of Pentecost. In the beginning of the chapter, he refutes claims that the disciples are drunk by explaining they are experiencing the prophecy of Joel. He is calling for complete attention so that the reason for quoting Joel can be properly explained. He testifies about Jesus’ life, crucifixion, and resurrection, to show proof and to demonstrate God's validation of Jesus as Messiah the Messiah.Peter continues to confront the "men of Israel" and his indictment against them regarding the rejection and crucifixion of Jesus. All are guilty. However, there was an eternal purpose of God that set the boundaries for what would occur because God had ordained it to be so.
Backing up his claims with the Old Testament, Peter quotes King David (from Psalm 16) to argue that God would not let His "Holy One see decay". Peter clarifies that David died and was buried, so the prophecy must point to the resurrection of the Christ. He concludes that God has made Jesus both "Lord and Messiah".
Cut to the heart by Peter's words, the listeners ask how they should respond. Peter instructs them to repent of their sins and be baptized in the name of Jesus Christ for the forgiveness of sins, promising they will receive the gift of the Holy Spirit. The passage concludes by noting that about 3,000 people accepted his message and were baptized that very day.