From Richard Beck:
Sola scriptura produces pluralism. The “bible alone” creates doctrinal diversity. Biblical literalism proliferates churches.
And five-hundred years of Protestantism is Exhibit A.
The only way to get a single, unified church, as the Catholics will tell you, isn’t the bible. What you need, rather, is a magisterium, a teaching authority that says, for everyone, “this is what the bible says.”
And that’s why there is one Catholic church and tens, thousands or tens-of-thousands of Protestant churches (depending upon how you count them).
A magisterium gets you one church. A literal reading of the inspired and inerrant Word of God gets you many, many churches.
That’s a fact with an important moral implication.
Which is this: If your are going to accept the burden of being of Protestant, of living with sola scriptura, then you are going to have to learn to welcome doctrinal diversity.
If you want to be biblical you’re going to have to reconcile yourself to pervasive interpretative pluralism. That’s life being biblical. Being biblical requires a fair amount of tolerance for doctrinal diversity. Being biblical means creating a big tent.
But, Richard, the creeds can guide us.