Also they teach that one holy Church is to continue forever. The Church is the congregation of saints, in which the Gospel is rightly taught and the Sacraments are rightly administered.Then, here's a paraphrase of a scary incident about evangelism and mission shared by a colleague at April's Faith, Order and Witness meeting:
And to the true unity of the Church it is enough to agree concerning the doctrine of the Gospel and the administration of the Sacraments. Nor is it necessary that human traditions, that is, rites or ceremonies, instituted by men, should be everywhere alike. As Paul says: One faith, one Baptism, one God and Father of all, etc. Ephesians 4, 5. 6.
The close to incredible success of the Presbyterian branch of the Church in their evangelical efforts in Korea generally is well-known; however...a Presbyterian from Korea essentially maintained to an American, "We wish you could have brought us the flower of the Gospel without the flowerpot, which we definitely did not need!" As Augustana 7 insists, "Nor is it necessary that human traditions, that is, rites or ceremonies, instituted by men, should be everywhere alike." From here I'll say not only not necessary but definitely not remotely desirable, either!