jats:p In Roman Faith and Christian Faith Teresa Morgan brings a classicist’s sensitivities to a subject that lies at the heart of the New Testament but that is often taken as self-evident. This article engages in a conversation with its insights, with particular reference to the Johannine literature. It suggests that more nuancing might be needed, not least from a recognition of the demands of the genre of the gospel, but also finds much to provoke further reflection. </jats:p>