Genesis 20:12-13

King James Version

¹² And yet indeed she is my sister; she is the daughter of my father, but not the daughter of my mother; and she became my wife.

¹³ And it came to pass, when God caused me to wander from my father's house, that I said unto her, This is thy kindness which thou shalt shew unto me; at every place whither we shall come, say of me, He is my brother.