Go in, and speak to Pharao king of Egypt, that he let the children of Israel go out of his land.
And the Lord said to Moses: Behold, I have appointed thee the God of Pharao: and Aaron thy brother shall be thy prophet.
And the Lord spoke to Moses, saying: I am the Lord. Speak thou to Pharao king of Egypt all that I say to thee.
For since the time that I went in to Pharao to speak in thy name, he hath afflicted thy people: and thou hast not delivered them.
After these things Moses and Aaron went in, and said to Pharao: Thus saith the Lord God of Israel: Let my people go that they may sacrifice to me in the desert.
But come, and I will send thee to Pharao, that thou mayst bring forth my people, the children of Israel out of Egypt.
And thou shalt say to him: Thus saith the Lord: Israel is my son, my firstborn.
I have said to thee: Let my son go, that he may serve me, and thou wouldst not let him go: behold I will kill thy son, thy firstborn.
And the Lord spoke to Moses, saying: