have taken it for granted that the first thing a new Christian does is to go and tell others. Thus the Church grows spontaneously. It is itself the mission, the embassage of Christ sent to all men in his name, going in order to bid men come, coming in order to be sent, a gathering and a sending which is for all men. But even in this relatively simple situation the Church is never simply a congregation. It is, in fact, also a segregation, because its character is given not only by the Gospel it proclaims,