Exodus 3:12-14

12“I will surely be with you,” God said, “and this will be the sign to you that I have sent you: When you have brought the people out of Egypt, all of you will worship God on this mountain.”1

13Then Moses asked God, “Suppose I go to the Israelites and say to them, ‘The God of your fathers has sent me to you,’ and they ask me, ‘What is His name?’ What should I tell them?”

14God said to Moses, “I AM WHO I AM.2 This is what you are to say to the Israelites: ‘I AM has sent me to you.’”