But Moses protested, "If I go to the people of Israel and tell them, 'The God of your ancestors has sent me to you,' they won't believe me. They will ask, 'Which god are you talking about? What is his name?' Then what should I tell them?"
God replied, "I AM THE ONE WHO ALWAYS IS. Just tell them, 'I AM has sent me to you.'"
References for Exodus 3:14
God also said, "Tell them, 'The LORD, the God of your ancestors -- the God of Abraham, the God of Isaac, and the God of Jacob -- has sent me to you.' This will be my name forever; it has always been my name, and it will be used throughout all generations."
References for Exodus 3:15