פירוש על דברים 13:12

וכל ישראל ישמעו וייראו ולא יוסיפו, neither the seducer himself nor others who found him convincing.

ולא יוסיפו לעשות כדבר הרע הזה, “so that they shall not continue to commit such evils.” If the law against people preaching idolatry publicly or privately were not strictly enforced such a “disease” would become an epidemic.