Originally Posted by Robin
Believers should not continue to preach to people who have rejected the gospel with scorn and contempt (see Matthew 10:14, Acts 13:44 and following, 18:5-6 and 28:17-28). That certainly doesn't mean that God cannot or will not eventually reach these people, only that we cannot let ourselves get so preoccupied with working to convert one belligerent scoffer that we neglect those who the Spirit has given "ears to hear."

-R
What comes to mind is Titus 3:9-11 "avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
A man that is an heretick after the first and second admonition reject;
Knowing that he that is such is subverted, and sinneth, being condemned of himself."

Christ is lovely, Christ is very lovely, Christ is most lovely, Christ is always lovely, Christ is altogether lovely. --Thomas Brooks