Acts 19:11-20 - Would-Be Exorcists
11 And God wrought extraordinary miracles by the hands of Paul: 12 so that even handkerchiefs or aprons were brought from his body to the sick, and the diseases lest them, and evil spirits went out of them.
13 Then some of the vagabond Jews, exorcists, took upon them to name the name of the Lord Jesus over those that had evil spirits, saying, "We adjure you by Jesus, whom Paul preacheth." 14 Now there were seven sons of one Sceva a Jewish priest, who did this. 15 But the evil spirit answered and said, Jesus I know, and Paul I know, but who are ye? 16 And the man in whom the evil spirit was, leapt upon them, and mastered them, and prevailed against them, so that they fled out of that house naked and wounded. 17 And this became known to all, both Jews and Greeks, that dwelt at Ephesus; and fear fell on them all, and the name of the Lord Jesus was magnified. 18 And many of them that believed came confessing and declaring their former practices. 19 And a great number of those that had used inquisitive arts, brought the books, and burned them before them all: and they computed the price of them, and found it to be fifty thousand pieces of silver. 20 So mightily did the word of the Lord increase and prevail.