Titus 3:10

Heretick] A heretic, to St. Paul, was never one who held erroneous opinions only, but one whose error sprang from moral crookedness, issuing at last in evil life. There seems always a sensual element in what St. Paul calls heresy; for he classes it with the sins of the flesh (Galatians 5:20). The heresies of the Corinthian Church were moral rather than intellectual (1 Corinthians 11:19). Ephesians 4:18. exactly describes heresy, though the word itself is not mentioned. It is not important, but interesting to note that the word 'heretic' occurs only here in the NT. 'Heresy' is common. Reject] This is not excommunication. 'Refuse,' 'avoid,' 'shim,' 'decline to have intercourse with,' have been suggested as better translations.