The Augustana confesses about the Church that she is and what the Church is in liturgical terms. As Lutherans, this point is sometimes lost to us. The Church as “the assembly of
saints in which the Gospel is taught purely and the Sacraments are
administered rightly” (AC VII). Unless you think of this in theoretical terms, this is concrete and liturgical language. The Church is what she does and where she does it. This should not come as a surprise. This is the catholic way of speaking and this catholic doctrine and practice is the claim of the same Confession.
Sometimes Lutherans get so caught up in the invisible character of the Church's fullness that it is easy to presume that the Church is not local, a specific assembly in which the Word speaks, sins are forgiven, sinners washed clean, and the hungry fed upon the Bread of Life. As Norman Nagel often said, a God who is everywhere is nowhere when you need Him. This is reflective of the incarnational theology of St. John. Jesus is the God who is precisely that -- somewhere. He is here. In the flesh of His mother as like any child and yet without sin. In the bread of His flesh and yet gloriously so. In the bread that is the Word that proceeds from the mouth of God and yet not simply words.
It is a wonderful thing to have a written confession -- Lutherans are blessed to have such in the Concordia. But the Confession does not live in some theoretical or artificial idea. The Confessions live in the assembly of the saints and they live where and through the Word of the Gospel purely proclaimed and the Sacraments rightly administered according to our Lord's bidding. In some respects, we have lost this dynamic and think of the Confessions as a book of words to which one subscribes. Confessional subscription, while affirmed in words, is something lived out as the people of God gather around the Word of God and the Table of God. You cannot build a wall between what is believed and how it is lived out, between what we say and what we do. Sadly, that is exactly what some have tried to do and in so doing have rendered academic and weak what is practical and strong.
Doctrinal integrity means nothing if those who kneel at the rail have different confessions and those with one confession have no unity unless they kneel together. There is no church fellowship that does not meet also at the rail and there is no rail that welcomes those who have no fellowship. The independent congregation without a formal fellowship of confession and liturgical life is an oddity that cannot live long and begs to the rescued. The congregation in which the fellowship is so wide that it does not expect or manifest a unity of confession is also odd and empty, begging to be fulfilled with the riches of a confession that is lived out in liturgical life.
In the same way, though this liturgical life does not demand an exact uniformity of rite or ritual, it certainly desires such -- as close as can be. Just as this liturgical life does not demand appointments or architecture, it certainly does not disdain the riches of more over less. What must not be demanded is nonetheless the desire -- oneness of confession and Table, of liturgy and church usages, of beauty and ceremony. Such unity and uniformity is not some theoretical ideal but that to which we work not because we must but because we desire it. There is something lost when we become so comfortable with a diversity of beliefs and practices that we find unity an alien thing instead of a familiar. Maybe it is true that the Church will never realize this goal on earth but that should not prevent us from striving for just that -- a unity not of less but of more, not of minimums but of fullness. If this is not that to which we are committed, for which we work, and the desire of our hearts, we are not worthy of being called the Church.
Finally, the standard we apply is not personal nor individual but catholic and of the whole. For this reason, we value tradition over novelty, what has been received over what has been invented, what marks us in continuity with those who have gone before over that which marks us as new and different. In the end this is the arena in which the old adage lives, lex orandi, lex credendi. And this ancient principle is reflected in our Confessions even as it is reflective of who we are as a church and what are the marks of this church. Our unity and life is liturgical just as our confession is. It is worth remembering in an age in which diversity seems to value the freedom to be different over the freedom to look like our fathers in the faith.