(Deut. 16:18:) “You shall appoint [judges and law officers] for yourselves”; and not for the peoples of the world. Another interpretation (of Deut. 16:18), “You shall appoint [judges and law officers] for yourselves (literally, yourself)”: [This] teaches that the judges were called in the name of Moses. Moreover, this is one of three things over which Moses risked his life and were called by his name. He offered his life over the Torah, [as stated (in Exod. 34:28),] “And he was there with the Lord forty days and forty nights.” And it was called by his name, as stated (in Mal. 3:22), “Remember [the] Torah of My servant Moses.” He offered his life over Israel, as stated (in Exod. 32:32), “But now, if You will forgive their sin, [well and good; but if not, please blot me out].” And they were called by his name, as stated (in Exod. 32:7, in which the Holy One, blessed be He, tells Moses), “Go down, for your people have acted basely.”
He also offered his life over the judges, as stated (in Exod. 2:12-14), “he smote the Egyptian [and hid him in the sand]. When he went out on the second day, [there were two Hebrew men fighting; so he said to the wicked one, ‘Why would you strike your comrade?’] But he said, ‘Who appointed you a prince and a judge?’” For that reason they were called in his name, as stated (in Deut. 33:21), “He chose for himself the best… he executed the Lord’s judgments, and His decisions for Israel.”