Acts 19:17-20

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. Many also of those who had believed kept coming, confessing and disclosing their practices. And many of those who practiced magic brought their books together and began burning them in the sight of everyone; and they counted up the price of them and found it fifty thousand pieces of silver. So the word of the Lord was growing mightily and prevailing.