Kabbalah zu Jeschijahu 1:27

It is written, “your eyes shall see Jerusalem a quiet habitation” (Yeshayahu 33:20) and “the eyes of Hashem your Elohim are always upon it, from the beginning of the year” (Devarim 11:12). Jerusalem requires this, that is, Jerusalem that is Malchut needs to have the eyes of Hashem that are Chochmah to be upon it; for the place where Chochmah appears is in Malchut that is called lower Chochmah. It is written, “righteousness lodged in it” (Yeshayahu 1:21). Therefore, Jerusalem is mentioned rather than Zion. Zion is the innermost Malchut that relates to the illumination of Chassadim, as written, “Zion shall be redeemed with judgment (or law)” (Ibid. 27), which is wholly mercy. Righteousness is the judgment of the left that relates to Jerusalem, and law is the mercy of Zeir Anpin that relates to Zion.

In this world therefore only the High Priest. who is from the side of Chesed, is allowed to enter the Holy of Holies, because none enters that most high place, that is, Yesod of Malchut that is called Zion, except for that which is called Chesed of Zeir Anpin that is the level of the High Priest who enters the Holy of Holies. Malchut is then perfumed, and the Holy of Holies is blessed within, that is, the place that is called Zion. Zion and Jerusalem are two levels, one is mercy, and one is judgment. Zion is mercy, as written, “Zion shall be redeemed with justice” (Yeshayahu 1:27), justice being mercy. Jerusalem is judgment, as written, “righteousness lodged in it” (Ibid. 21), righteousness being judgment, as we have explained.