1,2 Abraham traveled from there south to the Negev and settled down between Kadesh and Shur. While he was camping in Gerar, Abraham said of his wife Sarah, "She’s my sister."
2,3 So Abimelech, king of Gerar, sent for Sarah and took her. But God came to Abimelech in a dream that night and told him, "You’re as good as dead—that woman you took, she’s a married woman."
8,9 Abimelech was up first thing in the morning. He called all his house servants together and told them the whole story. They were shocked. Then Abimelech called in Abraham and said, "What have you done to us? What have I ever done to you that you would bring on me and my kingdom this huge offense? What you’ve done to me ought never to have been done."
10 Abimelech went on to Abraham, "Whatever were you thinking of when you did this thing?"
11-13 Abraham said, "I just assumed that there was no fear of God in this place and that they’d kill me to get my wife. Besides, the truth is that she is my half sister; she’s my father’s daughter but not my mother’s. When God sent me out as a wanderer from my father’s home, I told her, ‘Do me a favor; wherever we go, tell people that I’m your brother.’"