Kabbalah sa Isaias 57:16: Zohar, Reshit Chokhmah & Sefer HaBahir

There are the mighty works of the Supernal Holy King, who does not permit anything to perish, not even the breath of the mouth. He has a place for everything, and makes of it what He wills. Even a human word, yes, even the voice, is not void, but has its place and destination in the universe.

Rav stated: 'A man who willfully causes erection should be placed under the ban'. But why did he not say, 'This is forbidden'? Because the man merely incites his evil inclination against himself. Rav Ami, however, stated: He is called a renegade, because such is the art of the evil inclination: today it incites man to do one wrong thing, and tomorrow it incites him to worship idols and he proceeds to worship them. There are others who say that Rav Ami stated, He who excites himself by lustful thoughts will not be allowed to enter the division of the Holy One, blessed be He. For here it is written, “was evil in the eyes of Hashem" (Genesis 38:7), and elsewhere it is written, “For You are not El who has pleasure in wickedness; nor shall evil dwell with you” (Tehilim 5:5). Rav Elazar stated: Who are referred to in the Scriptural text, “Your hands are full of blood” (Isaiah 1:15)? Those that commit masturbation with their hands. It was taught at the school of Rabbi Yishmael, ‘Thou shalt not commit adultery’ implies, Thou shalt not practice masturbation either with hand or with foot. Our Rabbis taught: 'proselytes and those that play with children delay the advent of the Messiah', meaning: Those that marry minors who are not capable of bearing children, for Rav Yosi stated: The Son of David will not come until all the souls in Guf (Lit. 'Body' the region inhabited by the souls of the unborn) will have been disposed of, since it says, “For the spirit that humbles itself is from Me, and the souls which I have made” (Isaiah 57:16).

His students asked Rabbi Berachiah, "Accept our words before you!" He did not give them permission. One time, he did give them permission, but he* did this to check whether now they could direct their souls. "The first day," he examined them and said, "Let me hear your wisdom."
They opened and said, "'In the beginning' (Genesis 1:1) is one. [Two is:] 'Spirit that will wrap itself is from before me; souls I made' (Isaiah 57:16). [Three is:] 'The brook [פלג] of Elohim is filled with water' (Psalms 65:10)."
[Rabbi Berachiah asked them,] "What is 'brook'?"
[They answered,] "You taught us, our rabbi,** that [God] took waters of creation and divided them, gave half in the heavens and half in the ocean sea, as is written, 'The brook of Elohim is filled with water' — and through it, a person learns Torah. As rabbi Chama said, 'Through the merit of gemilut chasadim a person learns Torah. Similarly, it is written, All who are thirsty, go to water, and if he has no money [כסף], go, obtain food and eat' (Isaiah 55:1) — go to Him and He will bestow kindness to you: obtain*** and eat!'"
*[Ed. - Sefaria text reads "she," but other versions say, "he."]
**[Ed. - Sefaria text reads "we saw"; other versions of the text say "our rabbi."]
***[alternatively, 'hope.' For example, see Nehemiah 2:13, 15; Psalms 119:166, 145:15; Esther 9:1]