Genesis 12:11-13

When he had come near to enter Egypt, he said to Sarai his wife, “See now, I know that you are a beautiful woman to look at.

It will happen, when the Egyptians will see you, that they will say, ‘This is his wife.’ They will kill me, but they will save you alive.

Please say that you are my sister, that it may be well with me for your sake, and that my soul may live because of you.”