So we’ll see that not only does baptism have an ecclesial shape, but church membership has a baptismal (and eucharistic) shape. The first leads us to the second; from the ecclesial shape of baptism we discern the baptismal shape of membership. In some ways, then, these two issues are simply two sides of one coin: the relationship between the ordinances and the membership, and even existence, of a local church. I’m going to argue that this relationship has a discernible theological shape, and this