Suppose the Parliament would make a law that God should not be God...

(While More was in the Tower the King sent three of his people to deprive him of his books, besides they had another errand which was more important and which could hide itself behind the other: to get More to speak indiscreetly, unguardedly, some of his opinions.)

Listen to him while you pack the books. So while the other two were packing the books, Rich was in conversation with the astute More. He asked More if More would not accept him, Rich, as King if Parliament should so decree.

“Yes, Sir,” quote Sir Thomas More. “That would I.” Then Rich asked him another question, still as in idle conversation. If Parliament should elect him, -Rich- Pope, would not More accept him as Pope?

More answered such a question with a better question: “Suppose the Parliament would make a law that God should not be God; would you then, Master Rich say that God were not God?

(Daniel Sargent, "Thomas More", Unicorn Books, p 258)