LEV617 Do not cause shame to your fellow Jew. People cannot bear embarrassment. There is no greater type of suffering, so Hashem forbids us to embarrass our fellow Jews. When a Jew sins, one must rebuke him privately, not in public, so that he will not suffer undue embarrassment.... This is so when he has wronged his fellow Jew. On the other hand, if he has sinned against Hashem—i.e., his wrong is only between him and his Maker--if he does not heed rebuke that is given to him in private, it is a mitzvah to rebuke him in public and thereby cause him embarrassment. One continues to rebuke him and publicize his sin, until he is overcome by shame and repents.