12:12Therefore it shall come to pass, when the Egyptians shall see thee, that they shall say, This is his wife: and they will kill me, but they will save thee alive.

12:13Say, I pray thee, thou art my sister: that it may be well with me for thy sake; and my soul shall live because of thee.

20:2And Abraham said of Sarah his wife, She is my sister: and Abimelech king of Gerar sent, and took Sarah.