1 Timothy 1:18-20

1:18 I put this charge before you, Timothy my child, in keeping with the prophecies once spoken about you, in order that with such encouragement you may fight the good fight. 1:19 To do this you must hold firmly to faith and a good conscience, which some have rejected and so have suffered shipwreck in regard to the faith. 1:20 Among these are Hymenaeus and Alexander, whom I handed over to Satan to be taught not to blaspheme.