There is no other Church than the Church sent into the world, and there is no other mission than that of the Church of Christ. . . . If one wants to maintain a specific theological meaning of the term mission as “foreign mission,” its significance is, in my opinion, that it keeps calling the Church to think over its essential nature as a community sent forth into the world.
Seen in that light missionary work is not just one of its activities, but the criterion for all its activities . . . . It is exactly by going outside itself that the Church is itself and comes to itself.
- Johannes Blauw in The Missionary Nature of the Church