Genesis 20:9-13

Abimelech summoned Abraham and asked him, “What is this trick you have played on us? I did nothing wrong to you. Why would you bring such great guilt upon me and my kingdom? You have done to me what no one should ever do to another.” Then Abimelech asked, “What is your purpose in doing this?” Abraham answered, “Because I thought, ‘There’s no one here that fears God. They will kill me to get to my wife.’ Besides, she really is my half sister. She’s my father’s daughter, but not my mother’s, so I married her. When God sent me out to wander from my father’s house, I said to her, ‘Here is how you can show your love for me. Everywhere we go, you must say about me, “He’s my brother.” ’ ”