Titus 3:9-11 BBE

9 But have nothing to do with foolish questionings, and lists of generations, and fights and arguments about the law; for they are of no profit and foolish.
10 A man whose opinions are not those of the church, after a first and second protest, is to be kept out of your society;
11 Clearly he is in error and a sinner, being self-judged.