השב תשיבם לאחיך
Horav Shmuel Hominer, zl (Eved HaMelech), writes that included in the mitzvah of Hasheiv teshiveim, the obligation to return a lost article to its rightful owner, likewise applies with regard to the spiritual sphere. One Jew is responsible for the other. Therefore, if my brother is plagued with a spiritual shortcoming, my attitude should not be: “How does this involve me? He is responsible for his life. I am responsible for mine.” It does not work that way. We are responsible for one another. One should not ignore his fellow’s plight by turning a blind eye to his spiritual failings….