And this became known to all residents of Ephesus, both Jews and Greeks; and fear fell upon them all; and the name of the Lord Jesus was extolled. Many also of those who were now believers came, confessing and divulging their practices. 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. So the word of the Lord grew and prevailed mightily.
–Acts 19:17-20