Tell Mary to say that she is your sister.

When Abraham was about to enter Egypt, he was afraid that the Egyptians would kill him, and he advised his wife Sarah to say that she was his sister. (…) You should tell Mary in your needs to say that she is your Sister, so that the Lord God may listen to you because of her and turn everything to good.

(Federico di S. Antonio OCD /1720–1779/, Il devoto di Maria del Carmine)