KJV: And the men of the place asked him of his wife; and he said, She is my sister: for he feared to say, She is my wife; lest, said he, the men of the place should kill me for Rebekah; because she was fair to look upon.
NASB: 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."
KJV: And Abimelech called Isaac, and said, Behold, of a surety she is thy wife: and how saidst thou, She is my sister? And Isaac said unto him, Because I said, Lest I die for her.
NASB: 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.'"