Exodus 3:10-14

10So now go, and I will send you to Pharaoh to bring my people, the Israelites, out of Egypt.”

11Moses said to God, “Who am I, that I should go to Pharaoh, or that I should bring the Israelites out of Egypt?”

12He replied, “Surely I will be with you, and this will be the sign to you that I have sent you: When you bring the people out of Egypt, you and they will serve God on this mountain.”

13Moses said to God, “If I go to the Israelites and tell them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is his name?’ – what should I say to them?”

14God said to Moses, “I am that I am.” And he said, “You must say this to the Israelites, ‘I am has sent me to you.’”