Genesis 26:1-9

Now there was a famine in the land, besides the previous famine that had occurred in the days of Abraham. So Isaac went to Gerar, to Abimelech king of the Philistines. The LORD appeared to him and said, “Do not go down to Egypt; stay in the land of which I shall tell you. Sojourn in this land and I will be with you and bless you, for to you and to your descendants I will give all these lands, and I will establish the oath which I swore to your father Abraham. I will multiply your descendants as the stars of heaven, and will give your descendants all these lands; and by your descendants all the nations of the earth shall be blessed; because Abraham obeyed Me and kept My charge, My commandments, My statutes and My laws.” So Isaac lived in Gerar. When the men of the place asked about his wife, he said, “She is my sister,” for he was afraid to say, “my wife,” thinking, “the men of the place might kill me on account of Rebekah, for she is beautiful.” It came about, when he had been there a long time, that Abimelech king of the Philistines looked out through a window, and saw, and behold, Isaac was caressing his wife Rebekah. Then Abimelech called Isaac and said, “Behold, certainly she is your wife! How then did you say, ‘She is my sister’?” And Isaac said to him, “Because I said, ‘I might die on account of her.’ ”