Tehillim 31:20 Kabbala: Zohar Chadash, Zohar & Or Neerav

Come and behold, the supernal radiance [Binah], continues to radiate. Through this radiance, it should bring gladness to all. This is the right, which was crowned with the right to make the engravings. It is written, "How great is Your goodness, which You have laid upon those who fear You and which You have wrought for they who trust in You" (Ps. 31:20). "How great is Your goodness" alludes to the primordial light that the Holy One, blessed be He, stored away. "They who fear You" alludes to the righteous who fear sin, who are aforementioned. "And there was evening and there was morning, the first day" (Gen. 1:5) "And there was evening" from the side of darkness [Nukva] "and there was morning" from the side of light [Zeir Anpin]. And since they join together as one, it is written they are the "first day."

The letter Teth entered, stood before Him and said, Master of the Universe may it please You to create the world with me, as by me You are called Good [tov] and Upright. He replied: I will not create the world with you, because your goodness is concealed within you. Therefore it is written: "How abundant is the good that You have in store for those who fear You" (Ps. 31:20). So because your [goodness] is concealed within you, it cannot take any part in this world that I want to create. It only applies to the World to Come. Furthermore, because your goodness is concealed and treasured within yourself, the gates of the Temple shall be 'sunk.' As it is written: "Her gates have sunk into the ground," (Lam. 2:9). And to add to all this, the letter Heth stands before you, together you become a sin (spelled Heth-Teth-Aleph). This is why these two letters do not appear in the names of the twelve tribes. Teth immediately then took its leave and went away from Him.

Oh, how abundant is Your goodness which You have laid up for those who fear You (Ps. 31:20).