Genesis 20:10-18

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.