Genesis 26:9

26:9 So Abimelech summoned Isaac and said, “She is really your wife! Why did you say, ‘She is my sister’?” Isaac replied, “Because I thought someone might kill me to get her.”

Genesis 39:9

39:9 There is no one greater in this household than I am. He has withheld nothing from me except you because you are his wife. So how could I do such a great evil and sin against God?”