I have worshipped in the Reformed Episcopal Church since I was six. During that time, the REC has taken part in serious discussions regarding the unity of Episcopalians in North America who have been disenfranchised by the Episcopal Church's headlong run into heterodoxy.
These discussions, agreements, and concordats have, I'm sure, been pleasing to the Lord who pleaded that "they may be one." (John 17:21)
However, as I was reading the Theological Statement posted on the website for the Provinve of the Anglican Church in North America, I found one point particularly sticky. In general, the document affirms the traditional Anglican Church's committment to Catholic Christianity, for which it has my highest praise (whatever that's worth). But point (5) really bothers me. It can be found here. http://www.united-anglicans.org/about/theology.html
Of the ecumenical councils of the Church, numbering 21 in total (Nicea 1-Vatican II), the statement only considers the work of the first seven, and with strong qualifiers on 5-7. Now, that an Anglican document would only acknowledge the first seven councils is nothing new. Eastern Orthodox Christians acknowledge only the first seven as well. But who is going to be the authority which determines that "the clarifications...are agreeable to the Holy Scriptures"? This is the problem of Sola Scripture (the scriptures alone) as a principle. While the Word of God is a treasure "sweeter than honey and better than gold", its value is diminshed if it is not properly interpreted. Who is the arbiter of what the Bible teaches?
It appears to me that the architects of this document believes that the fathers of the Church, meeting in council, messed up. So who gets to determine who messed up the interpretation of Scripture?
I think it is important to understand Scripture within the context of Christian tradition. It is not that tradition and reason exist as secondary authorities to Scripture, rather that the Scriptures function as a witness to the primary tenets of Apostolic Christianity, read: tradition (hence the reason the post-apostolic fathers, under the direction of the Holy Spirit, chose the books and letters they did to comprise the New Testament.) That said, the traditions passed on through the Church should not be disqualified because Scripture does not explicity state them as truth. Instead, we should accept the teachings of the Councils as a witness to the traditions Paul spoke of in his letters to Timothy (II Tim. 1:13-14, II Tim 2:1-2,) and the Thessalonians (II Thes. 2:15), especially since you won't find in these council teachings anything contradictory toward Scripture.