Do Lutherans consider the doctrines in the Augsburg Confessions and some of the Ecumenical Councils of the first millenium to be infallible?
Ok...then this leads me to another question: Do the Lutherans believe that they are the continuation of the historic Church started by Christ and preached by the apostles?
Do they believe that there has to be at least one church, with apostolic succession, that continues to preserve the apostolic teachings until the reformation?
Ok...then this leads me to another question: Do the Lutherans believe that they are the continuation of the historic Church started by Christ and preached by the apostles? Do they believe that there has to be at least one church, with apostolic succession, that continues to preserve the apostolic teachings until the reformation?
As to what constitutes the one true Church, Lutherans confess the following:
[1] It is also taught that at all times there must be and remain one holy, Christian church. It is the assembly of all believers among whom the gospel is purely preached and the holy sacraments are administered according to the gospel.
[2] For this is enough for the true unity of the Christian church that there the gospel is preached harmoniously according to a pure understanding and the sacraments are administered in conformity with the divine Word. [3] It is not necessary for the true unity of the Christian church that uniform ceremonies, instituted by human beings, be observed everywhere. [4] As Paul says in Ephesians 4[:4–5*]: “There is one body and one Spirit, just as you were called to the one hope of your calling, one Lord, one faith, one baptism.”
Augsburg Confession article VII
I think there are pretty similar confessions across the Protestant board, for example in the 39 articles it virtually the same.
It's not like Catholics have this firmly nailed down, either. Vatican II in particular opened new questions about Catholic ecclesisology, there is a tension between a more Protestant understanding of the Church, and one resembling Vatican I's absolute monarchy and institutionalism. That's why Catholic theologians occasionally talk about a crisis in ecclessiology.
Oh you mean conciliarism vs. papal monarchy?
This thought just popped into my mind: It seems that the sedevacantists, those who don't believe that the popes were actually popes since the 1960s, are essentially Lutherans in their belief of the apostolic succesion since they have to conclude that every Roman Catholic bishop in the world defected to a heretical council.
What ecumenical councils do Lutherans accept?
You are correct (for confessional Lutherans) other more liberal synods can tend to view the confessions, the Ecumenical councils and even the creeds (Athanasian in particular) as outdated historic documents and nothing more.Typically the first seven; up until the Second Council of Nicea.