The cry of the Israelites has now come to me; I have also seen how the Egyptians oppress them.
So come, I will send you to Pharaoh to bring my people, the Israelites, out of Egypt."
But Moses said to God, "Who am I that I should go to Pharaoh, and bring the Israelites out of Egypt?"
He said, "I will be with you; and this shall be the sign for you that it is I who sent you: when you have brought the people out of Egypt, you shall worship God on this mountain."
But Moses said to God, "If I come to the Israelites and say to them, "The God of your ancestors has sent me to you,' and they ask me, "What is his name?' what shall I say to them?"
God said to Moses, "I am who I am." He said further, "Thus you shall say to the Israelites, "I am has sent me to you.' "
References for Exodus 3:14
God also said to Moses, "Thus you shall say to the Israelites, "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 is my name forever, and this my title for all generations.
References for Exodus 3:15
Go and assemble the elders of Israel, and say to them, "The Lord, the God of your ancestors, the God of Abraham, of Isaac, and of Jacob, has appeared to me, saying: I have given heed to you and to what has been done to you in Egypt.
I declare that I will bring you up out of the misery of Egypt, to the land of the Canaanites, the Hittites, the Amorites, the Perizzites, the Hivites, and the Jebusites, a land flowing with milk and honey.'
They will listen to your voice; and you and the elders of Israel shall go to the king of Egypt and say to him, "The Lord, the God of the Hebrews, has met with us; let us now go a three days' journey into the wilderness, so that we may sacrifice to the Lord our God.'
I know, however, that the king of Egypt will not let you go unless compelled by a mighty hand.
References for Exodus 3:19