Exodus 3:10-20

10 Come now therefore, and I will send thee unto Pharaoh that thou may bring forth my people, the sons of Israel, out of Egypt.
11 Then Moses said unto God, Who am I that I should go unto Pharaoh and that I should bring forth the sons of Israel out of Egypt?
12 And he said, Certainly I will be with thee; and this shall be a token unto thee that I have sent thee: When thou hast brought forth the people out of Egypt, ye shall serve God upon this mountain.
13 And Moses said unto God, Behold, when I come unto the sons of Israel and say unto them, The God of your fathers has sent me unto you, and if they say to me, What is his name? What shall I say unto them?
14 And God answered unto Moses, I AM THAT I AM. And he said, Thus shalt thou say unto the sons of Israel: I AM (YHWH) has sent me unto you.
15 And God said moreover unto Moses, Thus shalt thou say unto the sons of Israel: The LORD God of your fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me unto you. This is my name for ever, and this is my memorial unto all ages.
16 Go and gather the elders of Israel together and say unto them, The LORD God of your fathers, the God of Abraham, of Isaac, and of Jacob, appeared unto me, saying, I have surely visited you and seen that which is done to you in Egypt,
17 and I have said, I will bring you up out of the affliction of Egypt unto the land of the Canaanite and the Hittite and the Amorite and the Perizzite and the Hivite and the Jebusite unto a land flowing with milk and honey.
18 And they shall hearken to thy voice, and thou shalt come, thou and the elders of Israel, unto the king of Egypt, and ye shall say unto him, The LORD God of the Hebrews has found us; therefore, we shall now go three days’ journey into the wilderness that we may sacrifice to the LORD our God.
19 For I am sure that the king of Egypt will not let you go except by a mighty hand.
20 But I will stretch out my hand and smite Egypt with all my wonders which I will do in the midst thereof, and after that he will let you go.