תלמוד על מלאכי 2:6

It was stated⁷⁰Tosephta 1:2, Babli 6b, Yebamot 92a.: Rebbi Eliezer ben Rebbi Yose the Galilean says, the person who arranges a compromise is sinning⁷¹It is clear from the following paragraphs and the parallels, that the statement is interpreted to apply to cases where either the trial already has started or where existing law allows a clear decision., and the one who praises a compromiser is like a blasphemer before the Omnipresent, as it is said⁷²Ps. 10:3.: he who blesses a compromiser slanders the Eternal! The law should pierce the mountain, as Moses did⁷³Who ordered ail people with suits to appear before him for judgment (Ex. 18:16) and did not invite them to an arbitration panel.. But Aaron promoted peace⁷⁴The midrash (Avot dR. Nathan I 12, II 24) explains that he dissuaded people from going to court. This is preferable according to everybody., as it is said⁷⁵Mal. 2:6., in peace and straightness he went with Me.

Love peace. How so? This is to teach you to be a person who loves peace among all the people of Israel, just as Aaron loved peace between everyone, as it says (Malachi 2:6), “A Torah of Truth was on his mouth, and no crooked thing was on his lips. He walked with Me in peace and righteousness, and he pulled back many from sin.”
(Rabbi Meir would say: What do we learn from “he pulled back many from sin”?) When Aaron was walking down the road, and he came upon a wicked person, he would wish him Shalom. The next day, when that man wanted to sin, he would say: Alas! How will I be able to look Aaron in the face; I will be so embarrassed when he wishes me Shalom. And so this man would stop himself from sinning.
Similarly, when two people were fighting with one another, Aaron would go and sit next to one of them and say: My son, look at the anguish your friend is going through! His heart is ripped apart and he is tearing at his clothes. He is saying, How can I face my old friend? I am so ashamed, I betrayed his trust. Aaron would sit with him until his rage subsided. Then Aaron would go to the other person in the fight and say: My son, look at the anguish your friend is going through! His heart is ripped apart and he is tearing at his clothes. He is saying, How can I face my old friend? I am so ashamed, I betrayed his trust. Aaron would sit with him until his rage subsided. When the two people saw each other, they would embrace and kiss one another. And that is why it says (Numbers 20:20), “And the entire House of Israel wept for Aaron for thirty days” [after his death].

Rabban Simeon b. Gamaliel said: Great is peace, for Aaron the [High] Priest was praised only for peace; for he loved peace, pursued peace, greeted with the salutation of peace and responded with it, as it is stated, He walked with Me in peace and uprightness.⁵⁶Mal. 2, 6. It teaches that when he noticed two persons at enmity one with the other, he used to go first to one of them and say to him, ‘Why do you hate So-and-so? He has already come to my house, prostrated himself before me and said to me, “I sinned against So-and-so”. Go and pacify him’. When he left this one, he went to the other and spoke to him similarly, and so made peace, love and friendship between a man and his fellow. What is written subsequently? For he is the messenger of the Lord of hosts.⁵⁷ibid. 7. The text of GRA has been followed. [Cf. above, p. 599.]
R. Joshua said: The prophet is called ‘messenger [of the Lord]’ and the priest⁵⁸So GRA. V and H read ‘a Sage’. is called ‘messenger [of the Lord]’. The prophet is called ‘messenger [of the Lord]’, as it is stated, Then spoke Haggai the Lord’s messenger;⁵⁹Hag. 1, 13. and the priest is called ‘messenger [of the Lord]’, as it is stated, For he is the messenger of the Lord of hosts.⁶⁰Mal. 2, 7. Lest you think that this applies even to a priest who is an ‘am ha-’areẓ, the text declares, And they should seek the law at his mouth.⁶¹ibid.