Likutei Moharan 2:3/ליקוטי מוהר"ן ב׳:ג׳

13. One who is worthy of this sword must understand how to do battle with it. He should not deflect it to the right or to the left, but be able to “strike at a hair and not miss” (Judges 20:16).

2And this is impossible without the attribute of mishpat (justice). For mishpat is the center pillar (Tikkuney Zohar, Introduction 7a). That is, to strike with one’s weapon at the precise point, inclining to neither the right nor the left, but at the center. This corresponds to “He orders his d’varav (affairs) with mishpat” (Psalms 112:5). {“It is a chok (statute) for Israel, a mishpat of the Lord of Yaakov” (Psalms 81:5).}

3This is the reason Yosef received the rights of the firstborn specifically from Yaakov, as in (Genesis 48:22), “I have given you….” “I,” <because Yaakov is> the aspect of mishpat. And this is: “It is a chok for Israel.” <“Chok”> suggests brit, as in (Shabbat 137b): A chok was placed on his flesh. [Therefore,] “… a mishpat of the Lord of Yaakov.” Yosef must receive this sword from the aspect of mishpat, so that he might “order his words with mishpat .” This is the meaning of (Psalms 72:1), “O Lord, give Your mishpatim to the king”—i.e., that Mashiach will receive from the aspect of mishpat .