(Be gentle - this is my very first post!

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And my first comment is a disagreement! (EEK!) But, I have to disagree. I believe that would be an important part of the discussion, but everything hinges on the different views Catholics and Lutherans have of the sacraments. Beginning with the fact that Lutherans don’t consider ordination (Holy Orders) a sacrament and don’t accept the Pope’s role as the final say in matters of faith.
Once we stopped seeing ordination as a sacrament and took that God-given authority from our clergy, it was inevitable that disagreements would lead to splits.
I think that the first thing would have to happen is for the Lutheran church to recognize that God set ONE seat over all of Christendom to prevent the kinds of splintering and denominational differences we have now. Before that could happen, they would have to see ordination (Holy Orders) as a sacrament and the lay people would have to accept our clergy as both shepherd and scriptural authority. And in turn, our CLERGY would have to accept that they report to other authorities besides just God Himself - bishops, cardinals, the Pope, et al.
When every man feels that he has the authority to interpret scripture without oversight from any other human, there’s going to be a problem. Scripture may be without error, but human understanding will always be flawed because of sin.
In the LCMS, there are pastors and conference leaders who believe that they are more right than the synod itself and don’t feel the need to follow the “rules” (for lack of a better word) of they synod. That may happen in the Catholic church, but there is a hierarchy in place to ensure that it doesn’t go to far. There is a huge problem of lack of respect for church leaders and refusal to follow elected synod leaders that are on “the other side” - and this is a problem with both the confessional crowd and the missional crowd.
BINGO! The confessional (conservative) Lutheran synods aren’t even in altar and pulpit fellowship with EACH OTHER!
?? This former Lutheran sees the unnecessary mess being caused by Luther and the reformers who decided that they didn’t need an earthly authority. Made even more clear by living in the rural south where there are more “flavors” of “Baptist” than one could ever imagine possible. Pastor has a disagreement with his conference? No problem, he just starts his own. When every Christian is given the “right” to interpret scripture with no authority except to God, there is no reason to assume that the splintering will continue and the day could (albeit not realistically) come where ever individual is his own denomination.

I agree. And that’s exactly how I ended up in the Catholic church.