1 Timothy 1:5; 1 Timothy 1:19; 1 Timothy 4:2

1 Timothy 1:5

5 The goal of this command is love, which comes from a pure heart and a good conscience and a sincere faith.

1 Timothy 1:19

19 holding on to faith and a good conscience, which some have rejected and so have suffered shipwreck with regard to the faith.

1 Timothy 4:2

2 Such teachings come through hypocritical liars, whose consciences have been seared as with a hot iron.