We will not overlook error or be silent, will not speak or write anything contrary to this Confession...

Our opponents have shameless mouths that have shouted allegations throughout the whole world against our churches and teachers.  They claimed that you cannot find two preachers who agree about each and every article of the Augsburg Confession, but that they are torn apart and separated from one another to such an extent that they themselves no longer know what the Augsburg Confession is and what its proper meaning is.  Therefore, we did not present this common Confession briefly or merely by signing our names, but we wanted to make a pure, clear, distinct declaration about all the disputed articles that have been discussed and argued among the theologians of the Augsburg Confession.  We did this so that everyone may see we do not want to hide or cover up all this in a cunning way or come to agreement only in appearance.  We want to remedy the matter thoroughly, and wanted to set forth our opinion on these matters in such a way that even our adversaries themselves must confess that in all this we abide by the true, simple, natural, and proper sense of the Augsburg Confession.  We desire, by God's grace, to persevere constantly in this confession until our end.  And as long as it depends on our ministry, we will not overlook error or be silent, lest anything contrary to the genuine sense of the Augsburg Confession is introduced into our churches and schools, in which the almighty God and Father of our Lord Jesus Christ has appointed us teachers [Latin: doctors] and pastors.

...

In the sight of God and of all Christendom, we want to testify to those now living and those who will come after us.  This declaration presented here about on the controverted articles mentioned and explained above--and no other--is our faith, doctrine, and confession.  By God's grace, with intrepid hearts, we are willing to appear before the judgment seat of Christ with this Confession and give an account to it.  We will not speak or write anything contrary to this Confession, either publicly or privately.  By the strength of God's grace we intend to abide by it.  Therefore, after mature deliberation, we have, in the fear of God and by calling on His name, attached our signatures with our own hands.
~BOC, FSD, XII, 3-6, 40