Musar su Esodo 18:20

Among the positive commandments in the Torah are some of the weighty ones that the masses are not careful about - for example the mention of [God’s] name in vain, as it is stated (Deuteronomy 10:20), “You shall fear the Lord, your God.” And our Rabbis, may their memory be blessed, said (Temurah 4:1), “We have been warned with this not to mention [God’s] name in vain.” And likewise acts of kindness, which is a positive commandment, as it is stated (Exodus 18:20), “and make known to them the way they are to go” - that is acts of kindness (Bava Metzia 30b). And they said (Sukkah 49b), “Acts of kindness are superior to charity, [since] charity is given to the poor, while acts of kindness are performed both for the poor and for the rich.” Therefore they said (Avot 1:2), “The world stands upon three things: On the Torah; on the service; and on acts of kindness.” And (Sukkah 49b) “charity can be performed only with one’s money, while acts of kindness can be performed both with his person and with his money.” For a person is obligated to exert himself in seeking good for his people and to dedicate himself to the betterment of his fellow - whether poor or rich. And this is one of the main weighty commandments required of a person, as it is stated (Micah 6:8), “He has told you, O man, what is good, and what the Lord requires of you - only to do justice, and to love kindness.” And likewise to go beyond the law, as it is stated (Exodus 18:20), “and the practices they are to follow.” And our Rabbis, may their memory be blessed, said (Bava Metzia 30b), “This is going beyond the letter of the law.” And there are many ways in this matter, such that this commandment would be from the weighty ones. It is all according to the contents of the case - as our Rabbis, may their memory be blessed, said (Bava Metzia 30b), “Jerusalem was destroyed only because they established their rulings on the basis of Torah law and did not go beyond the letter of the law.”

And, in truth, how great is this mitzvah in the eyes of the Blessed L-rd, it being written (Michah 6:8): "He has told you, O man, what is good, and what the L-rd requires of you — but to do justice and to love chesed, etc." And Chazal have said (Succah 49b): "'to do justice' — this is din; 'and to love chesed' — this is gemiluth chasadim." And he also fulfills in this the mitzvah of (Devarim 29:9): "And you shall walk in His ways," as we find in Sifrei on the verse (Ibid. 10:12): "'to walk in all His ways' — these are the ways of the Holy One Blessed be He, as it is written (Shemoth 34:6): 'Hashem, Hashem, the G-d who is merciful and gracious, slow to anger, and abundant in chesed, etc.'" And Chazal say (Bava Metzia 30b): "R. Yosef taught (Shemoth 18:20): 'And you shall apprise them of the way' — this is gemiluth chasadim."

The Talmud illustrates this point by various examples. In Baba Kama 99b we are told that a woman came to Rabbi Chiyah asking him to determine if a certain coin was sound. He told her that it was. The next day the same woman came back to him complaining that others had refused to accept the coin at full value. Thereupon Rabbi Chiyah instructed Rav, the keeper of his money, to give this woman a coin of his own to compensate her for what he perceived to be an error of judgment on his part. He asked Rav to record this transaction as a loss. The Talmud questions why this instance was different from the previously mentioned example of a professional money-changer who erred in his judgment and who had given his opinion without charging. Such a money-changer does not have to compensate the enquirer. The Talmud answers that Rabbi Chiyah did not have to make restitution, but that he acted לפנים משורת הדין, beyond what was demanded of him legally. He took his cue from Rav Yossi who interpreted Exodus 18,20: "You will inform them of the path they should take and the practices they are to follow" to mean that one should go beyond the demands of the law in dealings with fellow human beings.