Genesis 12:13; Genesis 20:2; Genesis 20:13

13 Say you are my sister, that it may go well with me because of you, and that my life may be spared for your sake.

And Abraham said of Sarah his wife, sShe is my sister. And Abimelech king of Gerar sent and took Sarah.

13 And when cGod caused me to wander from my father's house, I said to her, This is the kindness you must do me: at every place to which we come, dsay of me, He is my brother.