Йешайау 33:20 Каббала: Pardes Rimmonim & Idra Zuta

And see, Rabbi Nehunya ben HaQana of blessed memory, is perfecting this speculation, as he counted thirteen attributes in Keter, as I will cite him in the Gate of What-ness and Governance [Gate VIII] in chapter 3, with help of HaShem. And similarly also the Rashbi of blessed memory wrote thirteen Attributes of Compassion in Ze’ir Anpin (“the Small Face”) and thirteen Attributes in Arikh Anpin (“the Long Face”). Certainly it is seen that their opinion is contrary to the opinion of the [Rav Hai] Gaon of blessed memory. And the place for the explanation of the thirteen attributes is not here, as it will be explained in a book of itself [possibly referring to the Ramak's book Tomer Devorah, Palm-tree of Deborah], if HaShem will decree [us] life. And the aim among us in this is to strengthen the belief of the Kabbalists, that one should not believe in adding to the ten Sefirot nor in subtracting from them, as it is “…a tent that will not wander, will not set out…” [Isaiah 33:20], ten and not eleven, and he who increases or lessens, is sinning and brings evil upon himself. And we ask from God to rescue us from errors.

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.