In the preface to his Institutes, John Calvin defends his doctrine against several accusations lodged by opposition [including Papists] to Reformation teaching. One of the charges is that Calvin's teaching is "new," and therefore bad.
Calvin: "Indeed, I do not at all doubt that it is new to them, since to them both Christ himself and his gospel are new. But he who knows that this preaching of Paul is ancient, that 'Jesus Christ died for our sins and rose again for our justification' [Rom. 4:25], will find nothing new among us." (Preface 3)