A Christian missionary who once persecuted the church heals the sick and casts out evil spirits during his time in Ephesus. These miracles lead some practitioners of magic to renounce their former ways.
The unsurpassable power of God, a power that cannot be manipulated by human beings, becomes so evident to everyone in Ephesus that people burn magic books. Likewise, lesser spirits are not deceived by the attempts of itinerant exorcists who attempt to use Jesus’ name. When the seven sons of Sceva, well-known exorcists, try to use Jesus’ name and power for their own gain, the spirits recognize Jesus is the Messiah whose life, death, and resurrection are God's saving act for humanity and drive the exorcists into the streets.