So remind me, why exactly did you guys split from the Orthodox?
It's a valid point. But IMO we're already left with the uncomfortable truth that Sola Scriptura doesn't work-that's the starting point. And the next question is, how then can we know with any degree of assurance what many important truths of our faith
are? And I'd submit that we simply
cannot know without the input of an entity having a continuous living legacy or experience with roots traceable to the beginnings of Christianity.
Now is it possible for schism to arise even where Scripture
isn't considered to be the sole rule of faith? Well, schism apparently erupts easier than outright heresy, going by the issues causing separation between the eastern and western ancient churches anyway. Because the amazing thing is the degree of
consistency between their practices and beliefs, even after centuries of isolation. The liturgy, sacramentology, the Real Presence by whatever name and the centrality of the Eucharist, baptismal regeneration, infant baptism, some form of a final state of purification in the next life, etc. But going by Scripture alone many beliefs end up on a smorgasbord, with people taking whatever they like, dismissing whatever they deem irrelevant or personally distasteful, disagreeing with the next diner over what should be on the menu to begin with.
But disagreements can still arise in the non-SS world, as you say. Both parties in this case agree that the
Church is the instrument God uses to maintain a unified faith, and yet we have division, not over the basic elements of the faith so much as over just
how that church authority should be wielded. And the Roman Catholic Church for its part insists on the necessity of a central living authority, where the buck stops, guided by the Holy Spirit. The eastern Churches rely on the decrees of certain earlier councils (which can still be disagreed over, of course), while no central figure can resolve contemporary issues or questions in any necessary universally accepted and agreed upon manner.
While the RCC has a logical and practical solution, this fact still matters little to the extent that we simply disagree with her.