Acts 19:11

8 And having gone into the synagogue, he was speaking boldly for three months, reasoning and persuading the things concerning the reign of God,

9 and when certain were hardened and were disbelieving, speaking evil of the way before the multitude, having departed from them, he did separate the disciples, every day reasoning in the school of a certain Tyrannus.

10 And this happened for two years so that all those dwelling in Asia did hear the word of the Lord Jesus, both Jews and Greeks,

11 mighty works also -- not common -- was God working through the hands of Paul,

12 so that even unto the ailing were brought from his body handkerchiefs or aprons, and the sicknesses departed from them; the evil spirits also went forth from them.

13 And certain of the wandering exorcist Jews, took upon [them] to name over those having the evil spirits the name of the Lord Jesus, saying, `We adjure you by Jesus, whom Paul doth preach;`

14 and there were certain -- seven sons of Sceva, a Jew, a chief priest -- who are doing this thing;