NUM129 Even if someone acts against us, we should aid him in his time of need. Miriam was stricken with tzoraas for having spoken against Moshe. Not only did Moshe refrain from growing angry at her for having spoken against him, but he even prayed for her recovery. From here we learn that even if someone acts against you and is punished for his act, you should do all you can to assist him. (Ralbag).