EXOD431 The love of father and mother should take the form of loving one's parents for having raised him and for having labored with him, and for having taught him God's ways, and for having shown him and guided him in Torah and mitzvos, and for having enabled him to fulfill the Blessed One's mitzvah [this verse]: "Honor your father and mother." And as to his brothers, sisters and other relatives, he should love them in consideration of their occupying themselves with him to elevate his character and to aid him in Divine service. And he should occupy himself with them, to teach them and to chastise them, without playing favorites. He will thereby receive great reward and he will be manifesting a great trait, as it is written (Tehillim 15:3): And he has not borne shame because of his relatives." A man derives much benefit from his relatives. Witness the case of Lot, whom Avraham rescued from the kings (Bereshis 14: 14-16) and for whom he fought and who was rescued even from Sodom in Avraham's merit (ibid. 19:29). And one should love his friends and all other Jews with perfect love, as it is written (Vayikra 19:18): "And you should love your fellow man as yourself." And this is a great principle in the Torah: "What you hate, do not do to your friend (Shabbos 31a). And even greater than this (Bereshis 9:6) "For in God's image did He make man" (Yerushalmi Nedarim 9:4).