In Acts 19, a demon responded to those attempting to exorcise him by saying, "Jesus I know, and Paul I know; but who are you?" Why did he know Paul? And why did he acknowledge Paul but not these exorcists? This sermon examines the major contrasts between the world's ways of dealing with the demonic and God's way, showing all the components that gave Paul the integrity and authority to deal with demons the way he did, and the powerful results.