has made [Jesus] both Lord and Christ, this Jesus whom you crucified” (Acts 2:36). Peter’s argument is saturated in Scripture. He is reasoning from the Old Testament to demonstrate that Jesus is indeed David’s greater son, the Messiah of Israel. In response to Peter’s sermon, the crowd turn to him and to the rest of the apostles and ask, “What shall we do?” (v 37). This question is a genuine response to the preaching of God’s word. Peter’s sermon demonstrates how the gospel can be preached