וְהִקְרִיתֶ֤ם לָכֶם֙ עָרִ֔ים עָרֵ֥י מִקְלָ֖ט תִּהְיֶ֣ינָה לָכֶ֑ם וְנָ֥ס שָׁ֙מָּה֙ רֹצֵ֔חַ מַכֵּה־נֶ֖פֶשׁ בִּשְׁגָגָֽה׃
너희를 위하여 성읍을 도피성으로 정하여 그릇 살인한 자로 그리로 피하게 하라
Guide for the Perplexed
A person who killed another person unknowingly must go into exile (Exod. 12:13: Num. 35:11-28); because the anger of “the avenger of the blood” (Num. 35:19) cools down while the cause of the mischief is out of sight. The chance of returning from the exile depends on the death of [the high-priest], the most honoured of men, and the friend of all Israel. By his death the relative of the slain person becomes reconciled (ibid. ver. 25); for it is a natural phenomenon that we find consolation in our misfortune when the same misfortune or a greater one has befallen another person. Amongst us no death causes more grief than that of the high-priest.