Having inserted Saul with appropriate and violent suddenness into the narrative of the Jerusalem apostles, Luke brings us back into Peter’s story. Having found his way down to Joppa, Peter will be called from there on another and more widely significant errand. But there is no such thing as a small errand in the kingdom of God. We will find that Peter was where he was on proper business from the Lord, the gospel business of healing and encouraging and building up God’s people.