“If one sees another committing a sin or going astray, it is a religious duty to inform him of the error of his way and return him to the right path. The Torah states, “Reprove your neighbor” (Lev. 19:17). One should not claim that “it’s none of my business.” When one does reprove another in matters that are between them or in ritual matters between man and God, it must be done privately and gently, with kind words. It should be made clear that the rebuke is intended only for the benefit and the good of the person. Whoever can erase the traces of improper deeds and does not do so, violates this commandment. This is so only when one has the slightest reason to believe that he will be listened to. But if one knows that his words will fall on deaf ears, then it is forbidden to reprove.”