Kabbalah sa 1 Mga Hari 7:36: Pardes Rimmonim

And see, he does not aim at the actual limb which is the tongue, since then it would become problematic as they [the Sefirot] would be eleven with the harmonizer, but the harmonizer is the Voice which is Tif’eret, in the mystsery of its ascent to Binah, which is the tongue which is the Shofar, as from there the Voice goes out, the sum of Water, Fire and Air, and this is the aspect of Tif’eret that rises upwards between the three first ones [Keter, Chochmah and Binah] and harmonizes between Gedolah and Gevurah, indicating the connection of the five upper ones with the five lower ones, and as we will explain in the Gate of the Arrangements of the Special Names [Gate XXI] with help of HaShem. “And the circumcision of the מעור (genitals)”, this is the covenant of the circumsision, and the explanation of מעור just as [in] “as the embracement (מער) of a man and his companion” (1 Kings 7:36), as our Sages, may their memory be a blessing, have explained: “as the embracement (מער), as the union of a man with his wife” [Talmud Bavli, Yoma 54a/b], who is the woman. And the intention is the unity that exists between the ten fingers of the feet by means of the genitals that are unifying them. And this explanation is necessary, as “the word of the tongue“ is the one unifying the ten fingers of the hands, and “the circumcision of the genitals” unifies the ten fingers of the feet, from what he explains in the sixth chapter [of Sefer Yetzirah], and this is what it says: “He cut for him the covenant between the ten fingers of his feet, and between the fingers of his hands, and this is the covenant of the tongue.”, end of citation.