Exodus 3:11-15

But Moses said to God, ‘Who am I that I should go to Pharaoh and bring the Israelites out of Egypt?’ And God said, ‘I will be with you. And this will be the sign to you that it is I who have sent you: when you have brought the people out of Egypt, you will worship God on this mountain.’ Moses said to 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?” Then what shall I tell them?’ God said to Moses, ‘I AM WHO I AM. This is what you are to say to the Israelites: “I AM has sent me to you.” ’ God also said to Moses, ‘Say to the Israelites, “The LORD, 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 for ever, the name you shall call me from generation to generation.