Now Moses, tending the flock of his father-in-law Jethro, the priest of Midian, drove the flock into the wilderness, and came to Horeb, the mountain of God. An angel of the Lord appeared to him in a blazing fire out of a bush. He gazed, and there was a bush all aflame, yet the bush was not consumed. Moses said, "I must turn aside to look at this marvelous sight; why doesn't the bush burn up?" When the Lord saw that he had turned aside to look, God called to him out of the bush: "Moses! Moses!" He answered, "Here I am." And He said, "Do not come closer. Remove your sandals from your feet, for the place on which you stand is holy ground. I am," He said, "the God of your father, the God of Abraham, the God of Isaac, and the God of Jacob." And Moses hid his face, for he was afraid to look at God.
And the Lord continued, "I have marked well the plight of My people in Egypt and have heeded their outcry because of their taskmasters; yes, I am mindful of their sufferings. I have come down to rescue them from the Egyptians and to bring them out of that land to a good and spacious land, a land flowing with milk and honey, the region of the Canaanites, the Hittites, the Amorites, the Perizzites, the Hivites, and the Jebusites. Now the cry of the Israelites has reached Me; moreover, I have seen how the Egyptians oppress them. Come, therefore, I will send you to Pharaoh, and you shall free My people, the Israelites, from Egypt."
But Moses said to God, "Who am I that I should go to Pharaoh and free the Israelites from Egypt?" And He said, "I will be with you; that shall be your sign that it was I who sent you. And when you have freed the people from Egypt, you shall worship God at this mountain."
Moses said to God, "When I come 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?' what shall I say to them?" And God said to Moses, "Ehyeh-Asher-Ehyeh." He continued, "Thus shall you say to the Israelites, 'Ehyeh sent me to you.'" And God said further to Moses, "Thus shall you speak 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 shall be My name forever,
This My appellation for all eternity.