Exodus 3:14-15
3:14 God 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.’”
3:15 God also said to Moses, “You must say this 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 forever, and this is my memorial from generation to generation.’