“Faith: Impersonating Faith, or How We Came to Have Faith in Fictions” analyzes how faith was taken up by Reformation theologians, by political theorist Thomas Hobbes, and by Aphra Behn in her earliest prose fiction. The chapter takes up “faith” at a key point in its history, in order to account for what it meant before secularization and for what its role would be in a secular epistemology, politics, and culture. It analyzes Thomas Hobbes and Aphra Behn in order to see how they link the idea of faith to the emergent category of fiction: In Hobbes, the political project of contract relies on fictionality for its form, while in Behn, the fictional project of the nascent novel relies on faith for its form.