Genesis 20:8-13

So early the next morning, Abimelech called all his officers and told them everything that had happened in the dream. They were very afraid. Then Abimelech called Abraham to him and said, “What have you done to us? What wrong did I do against you? Why did you bring this trouble to my kingdom? You should not have done these things to me. What were you thinking that caused you to do this?” Then Abraham answered, “I thought no one in this place respected God and that someone would kill me to get Sarah. And it is true that she is my sister. She is the daughter of my father, but she is not the daughter of my mother. When God told me to leave my father’s house and wander in many different places, I told Sarah, ‘You must do a special favor for me. Everywhere we go tell people I am your brother.’ ”