Acts 19:11-20 - Would-Be Exorcists
11 God did extraordinary miracles by the hands of Paul, 12 so that handkerchiefs or aprons were even carried from his body to the sick, and diseases left them and the evil spirits went out.
13 But also some of the Jewish exorcists, who went from place to place, attempted to name over those who had the evil spirits the name of the Lord Jesus, saying, "I adjure you by Jesus whom Paul preaches." 14 Seven sons of Sceva, a Jewish chief priest, were doing this. 15 But the evil spirit answered them, "Jesus I know, and I know about Paul, but who are you?" 16 And the man in whom the evil spirit was leaped on them, overpowered all of them, and prevailed against them, so that they fled out of that house naked and wounded. 17 This became known to all, both Jews and Greeks, who lived in Ephesus; and fear fell upon them all and the name of the Lord Jesus was being magnified. 18 Many also of those who believed now came, confessing and disclosing their practices. 19 And a number of those who practiced magic arts brought their books together and burned them in the sight of all; and they counted the value of them and found it came to fifty thousand pieces of silver. 20 So the word of the Lord grew mightily and prevailed.