In Exodus, when Moses asks God’s name, he is told Ehyeh asher ehyeh, a phrase that can be read as I am who I am, or I will be what I will be. Philosophers read it as a statement of pure being; kabbalists associate Ehyeh with the highest sefirah, Keter.
Ehyeh asher ehyeh
“I am that I am” or “I will be what I will be”: the name God gives Moses at the burning bush.
Also: I am that I am