1 Timothy 1:18–20

18 This charge I commit to you, Timothy, my son, in accordance with the prophetic utterances which pointed to you, that inspired by them you may wage the good warfare, 19 holding faith and a good conscience. By rejecting conscience, certain persons have made shipwreck of their faith, 20 among them Hymenaeus and Alexander, whom I have delivered to Satan that they may learn not to blaspheme.