Kabbalah su Esodo 15:11

Of the ancient of days⁸A reference to the sefirah Keter. it was said: Happy are you, O Israel, who is like you? (Deut. 33:29). It is further written: Who is like you, O Lord? (Exod. 15:11).”

The letter Nun entered and stood before Him saying, Master of the Universe, may it please You to create the world with me, because the phrase, "fearful in praises" [nora tehilot] (Ex. 15:11) starts with me. In the words of the righteous, "it is pleasant to sing glorious praise." (Ps. 147:1) ["praise" in Hebrew is nava] He said, Nun, go back to your place! It is because of you that the letter Samekh returned to its place. And you should depend on it for support. ["to fall" in Hebrew is nefilah, hence fall → support, nun → samekh] It immediately left His presence and returned to its place.