a culture that is now largely over. Ours is a new situation, one in which North America is a new mission field. This new situation invites and permits the church to (re)discover its essential missional nature and its relationship to the host culture. In a new post-Christendom world, everything a congregation does is—at least potentially—mission. Who and what we worship makes ultimate claims that are at odds with the loyalties and commitments of the society around us. In worship we witness to who