Your neighbors inhabit what Charles Taylor calls an “immanent frame”; they are no longer bothered by “the God question” as a question because they are devotees of “exclusive humanism”—a way of being-in-the-world that offers significance without transcendence. They don’t feel like anything is missing. So what does it look like to bear witness in a secular age? What does it look like to be faithful? To what extent have Christians unwittingly absorbed the tendencies of this world? On the one hand, this