Doctrine merely means teaching. Some people say that it is a practice, but people need to be indoctrinated in practices. So, SS is a doctrine.
The fact that it is a doctrine which is not found in Scripture, proves that Scripture does not command this practice. Thus, it is a practice which is imposed upon the Church against the teaching of Scripture. Therefore, the practice of this doctrine is in direct violation of the Doctrine which is revealed in Scripture.
Which is another proof against SS, which is defined in the BC as:
“The Word of God is and should remain the sole rule and norm of all doctrine” (FC SD, Rule and Norm, 9).
I don’t think this reflects Catholic teaching. I have been here long enough to hear numerous Catholics speak of the “three-legged stool”, Sacred Scripture, Sacred Tradition, Magisterium.
Claiming that the Church has no obligation to scripture is a remarkable admission if true. I’m happy to be corrected by Catholics, however.
See the above comment by Tarsier
And remember that the Catholic Church existed for three centuries without the Bible.
Well, for Lutherans, yes. Perhaps we have a different idea of what norm means. I see no conflict with saying, on the one hand, the Church in its teaching role determines doctrine, while on the other hand saying that the sole final norm for that process is scripture.
Your ideas differ from that of other Lutherans. Again, the BC says:
And Luther says: “The Word of God shall establish articles of faith and no one else, not even an angel” (SA, II, ii, 15). In contrast to all other writings and human authorities, God’s Word carries with it God’s authority.
Notice how Scripture is put above “human” authorities. Thus, over councils and governments. Thus, over the Church.
And this is the problem. Lutherans and all Protestants mistake and confuse their interpretation of Scripture for Scripture. When they speak, they call on the authority of Scripture. And when no one agrees, they break away and start a new religion.