Genesis20

Now Abraham moved on from there into the region of the Negev and lived between  Kadesh and Shur.  For a while he stayed in Gerar.  and there Abraham said of his wife Serah"She is my sister."   Then Abimelech king of Gerar sent for Sarah and took her.

But God came to Abimelech in a dream one night and said to him, :You are as good as dead because of the woman you have taken; she is a married woman."

Now Abimelech had not gone near her, so he said, :Lord, will you destroy an innocent nation?  Did he not say to me, 'She is my sister,' and didn't she also say, 'He is my brother'?  I have done this with a clear conscience and clean hands."

Then God said to him in the dream, "Yes, I know you did this with a clear consceience, and so I have kept you from sinning against me.  That is why I did not let you touch her.  Now return the man's wife, for he is a prophet, and he will pray for you and you will live.  But if you do not return her, you may be sure that you and all yours will die."

Early the next morning Abimelech summoned all his officials, and when he told them all that had happened, they were very much afraid.  Then Abimelech called Abraham in and said, "What have you done to us?  How have I wronged you that you have vrought such great guilt upon me and my kingdom?  You have done thing to me that should not be done."  And Abimelech asked Abraham, "What was your reason for doing this?"

Abraham replied, "I said to myself, 'There is surely no fear of God in this place, and they will kill me because of my wife.  Besides, she really is my sister, the daughter of my father though not of my mother; and she became my wife.  And when God had me wander from my father's household, I said to her, "This is how you can show your love to me: Everywhere we go, say of me, "He is my brother."'"

Then Abimelech brought sheep and cattle and male and female slaves and gave them to Abraham, and he returned Sarah his wife to him.  And Abimelech said, "My land is before you; live wherever you like."

To Sahar he said, "I giving your brother a thousand shekels of silver.  This is to cover the offense against you before all who are with you; you are completely vindicated."

Then Abraham prayed to God, and God healed Abimelech, his wife and his slave girls so they have children again, fot the LORD had closed up every womb in Abimelech's household because of Abraham's wife Sarah.