Exodus 3:12

9 Now, behold, the cry of the children of Israel has come to me. Moreover I have seen the oppression with which the Egyptians oppress them.

10 Come now therefore, and I will send you to Pharaoh, that you may bring forth my people, the children of Israel, out of Egypt."

11 Moses said to God, "Who am I, that I should go to Pharaoh, and that I should bring forth the children of Israel out of Egypt?"

12 He said, "Certainly I will be with you. This will be the token to you, that I have sent you: when you have brought forth the people out of Egypt, you shall serve God on this mountain."

13 Moses said to God, "Behold, when I come to the children of Israel, and tell them, `The God of your fathers has sent me to you;` and they ask me, `What is his name?` What should I tell them?"

14 God said to Moses, "I AM WHO I AM," and he said, "You shall tell the children of Israel this: "I AM has sent me to you."

15 God said moreover to Moses, "You shall tell the children of Israel this, `Yahweh, the God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you.` This is my name forever, and this is my memorial to all generations.