Genesis 12:11-20

As he (Abram) was about to enter Egypt, he said to his wife Sarai, "I know what a beautiful woman you are. If the Egyptians see you, and think, 'She is his wife,' they will kill me and let you live. Please say that you are my sister, that it may go well with me because of you, and that I may remain alive thanks to you." When Abram entered Egypt, the Egyptians saw how very beautiful the woman was. Pharaoh's courtiers saw her and praised her to Pharaoh, and the woman was taken into Pharaoh's palace. And because of her, it went well with Abram; he acquired sheep, oxen, donkeys, male and female slaves, and camels. But God afflicted Pharaoh and his household with mighty plagues on account of Sarai, the wife of Abram. Pharaoh sent for Abram and said, "What is this you have done to me! Why did you not tell me that she was your wife? Why did you say, 'She is my sister,' so that I took her as my wife? Now, here is your wife; take her and begone!" And Pharaoh put men in charge of him, and they sent him off with his wife and all that he possessed. [JPS translation]