It is the Feast of the Presentation of the Augsburg Confession which occurred 482 years ago in 1530. While reading about the confession I came across the following from Hermann Sasse speaking of the collected confessions we confess in the Book of Concord. While this does not speak directly to the Augsburg Confession it says wonders for what we confess as Lutherans:
...in every living church there must be room for a variety of theological thinkers, provided they are in agreement as to the dogma of the church. Thus, a difference of interest in, or emphasis on, certain points of doctrine, and even a difference of expression, could well be tolerated. Luther always felt that he and his learned friend [Melanchthon] supplemented each other. As Melanchthon had learned from him, so he had learned from Melanchthon. It has great significance for the Lutheran church that its Confessions were not written by Luther alone. As Melanchthon’s Augsburg Confession, Apology, and Tractatus are happily supplemented by Luther’s Smalcald Articles and Catechisms, so even the Formula of Concord was written by disciples of Melanchthon and of Luther. This variety in expression of one and the same truth gave the Lutheran Confessions a richness which the confessions of other churches do not possess. Nothing is more significant for the Lutheran church’s independence of human authority than the fact that Luther approved of the Augsburg Confession although he clearly stated that he would have written it in a totally different way. It is the doctrine of the Gospel that matters, and not human theology. (Hermann Sasse, This is my body [revised edition] [Adelaide, South Australia: Lutheran Publishing House, 1977], p. 253)