At the burning bush Moses asks God’s name, and God answers “I am who am” and bids him say that “He who is” has sent him. The Fathers read the name as declaring God’s being itself. It bears on the teaching that God exists of himself and that every creature has its being from him.
Moses said to God: Lo, I shall go to the children of Israel, and say to them: The God of your fathers hath sent me to you. If they shall say to me: What is his name? What shall I say to them? God said to Moses: I am who am. He said: Thus shalt thou say to the children of Israel: He who is, hath sent me to you.
