Ancestress of Israel Parallel Texts
Gen 12:10-20 (NRSV)
Gen 20:1-18 (NRSV)
Gen 26:1-11 (NRSV)
{10}  Now there was a famine in the land.  

{1}  Now there was a famine in the land, besides the former famine that had occurred in the days of Abraham. And Isaac went to Gerar, to King Abimelech of the Philistines.

    {2}  The LORD appeared to Isaac and said, "Do not go down to Egypt; settle in the land that I shall show you. {3}  Reside in this land as an alien, and I will be with you, and will bless you; for to you and to your descendants I will give all these lands, and I will fulfill the oath that I swore to your father Abraham. {4}  I will make your offspring as numerous as the stars of heaven, and will give to your offspring all these lands; and all the nations of the earth shall gain blessing for themselves through your offspring, {5}  because Abraham obeyed my voice and kept my charge, my commandments, my statutes, and my laws."
So Abram went down to Egypt to reside there as an alien, for the famine was severe in the land. {1}  From there Abraham journeyed toward the region of the Negeb, and settled between Kadesh and Shur. {6}  So Isaac settled in Gerar.
{11}  When he was about to enter Egypt, he said to his wife Sarai, "I know well that you are a woman beautiful in appearance; {12}  and when the Egyptians see you, they will say, 'This is his wife'; then they will kill me, but they will let you live. {13}  Say you are my sister, so that it may go well with me because of you, and that my life may be spared on your account." While residing in Gerar as an alien, {2}  Abraham said of his wife Sarah, "She is my sister." {7}  When the men of the place asked him about his wife, he said, "She is my sister"; for he was afraid to say, "My wife," thinking, "or else the men of the place might kill me for the sake of Rebekah, because she is attractive in appearance."
{14}  When Abram entered Egypt the Egyptians saw that the woman was very beautiful. {15}  When the officials of Pharaoh saw her, they praised her to Pharaoh. And the woman was taken into Pharaoh's house. {16}  And for her sake he dealt well with Abram; and he had sheep, oxen, male donkeys, male and female slaves, female donkeys, and camels. And King Abimelech of Gerar sent and took Sarah.  
{17}  But the LORD afflicted Pharaoh and his house with great plagues because of Sarai, Abram's wife. {3}  But God came to Abimelech in a dream by night, and said to him, "You are about to die because of the woman whom you have taken; for she is a married woman." {4}  Now Abimelech had not approached her; so he said, "Lord, will you destroy an innocent people? {5}  Did he not himself say to me, 'She is my sister'? And she herself said, 'He is my brother.' I did this in the integrity of my heart and the innocence of my hands." {6}  Then God said to him in the dream, "Yes, I know that you did this in the integrity of your heart; furthermore it was I who kept you from sinning against me. Therefore I did not let you touch her. {7}  Now then, return the man's wife; for he is a prophet, and he will pray for you and you shall live. But if you do not restore her, know that you shall surely die, you and all that are yours." {8}  So Abimelech rose early in the morning, and called all his servants and told them all these things; and the men were very much afraid. {8}  When Isaac had been there a long time, King Abimelech of the Philistines looked out of a window and saw him fondling his wife Rebekah.
{18}  So Pharaoh called Abram, and said, "What is this you have done to me? Why did you not tell me that she was your wife? {19}  Why did you say, 'She is my sister,' so that I took her for my wife? Now then, here is your wife, take her, and be gone." {20}  And Pharaoh gave his men orders concerning him; and they set him on the way, with his wife and all that he had. {9}  Then Abimelech called Abraham, and said to him, "What have you done to us? How have I sinned against you, that you have brought such great guilt on me and my kingdom? You have done things to me that ought not to be done." {10}  And Abimelech said to Abraham, "What were you thinking of, that you did this thing?" {11}  Abraham said, "I did it because I thought, There is no fear of God at all in this place, and they will kill me because of my wife. {12}  Besides, she is indeed my sister, the daughter of my father but not the daughter of my mother; and she became my wife. {13}  And when God caused me to wander from my father's house, I said to her, 'This is the kindness you must do me: at every place to which we come, say of me, He is my brother.'" {14}  Then Abimelech took sheep and oxen, and male and female slaves, and gave them to Abraham, and restored his wife Sarah to him. {15}  Abimelech said, "My land is before you; settle where it pleases you." {16}  To Sarah he said, "Look, I have given your brother a thousand pieces of silver; it is your exoneration before all who are with you; you are completely vindicated." {17}  Then Abraham prayed to God; and God healed Abimelech, and also healed his wife and female slaves so that they bore children. {18}  For the LORD had closed fast all the wombs of the house of Abimelech because of Sarah, Abraham's wife. {9}  So Abimelech called for Isaac, and said, "So she is your wife! Why then did you say, 'She is my sister'?" Isaac said to him, "Because I thought I might die because of her." {10}  Abimelech said, "What is this you have done to us? One of the people might easily have lain with your wife, and you would have brought guilt upon us." {11}  So Abimelech warned all the people, saying, "Whoever touches this man or his wife shall be put to death."