Many believers confessed their former sins and burned their books of magic.

Acts 19:18-22

18 At that time, while other believers were listening, many believers confessed the evil things that they had been doing. 19 Several of those who had previously practiced sorcery gathered up their scrolls that told how to work magic and burned them in a public place. When people added up how much those scrolls had cost, they realized that altogether the amount was 50,000 valuable silver coins.

20 As a result, many more people heard [MTY] the message about the Lord Jesus, and the message powerfully changed their lives.

21 After those things had happened, Paul decided that he wanted to go to Jerusalem, but he decided that first he would visit the believers in Macedonia and Achaia provinces again. Paul said, “After I have been to Jerusalem, I must also go to Rome.” 22 He sent two of his helpers, Timothy and Erastus, ahead to Macedonia. But Paul stayed a little longer in Ephesus city, in Asia province.