Exodus 3:14-15

14And 1God said to Moses, I AM THAT I AM. And he said, Thus shalt thou say unto the children of Israel: I AM hath sent me unto you.

15And 2God said moreover to Moses, Thus shalt thou say unto the children of Israel: Jehovah, the 3God of your fathers, the 4God of Abraham, the 5God of Isaac, and the 6God of Jacob, hath sent me unto you. This is my name for ever, and this is my memorial unto all generations.