Exodus 3:14-15 YLT

14 And God saith unto Moses, `I AM THAT WHICH I AM;' He saith also, `Thus dost thou say to the sons of Israel, I AM hath sent me unto you.'
15 And God saith again unto Moses, `Thus dost thou say unto the sons of Israel, Jehovah, God of your fathers, God of Abraham, God of Isaac, and God of Jacob, hath sent me unto you; this [is] My name -- to the age, and this My memorial, to generation -- generation.