Should Scripture alone be the sole infallible authority for Christian faith and practice?

Welcome to the debate arena! Today's topic: "Should Scripture alone be the sole infallible authority for Christian faith and practice?". Your opponent's style: A Evangelical Protestant who believes in Sola Scriptura

The resolution is "should Scripture alone be the sole infallible authority for Christian faith and practice?". As the affirmative, my opponent must prove that the answer to this question is "yes". As the negative, I must prove that the answer is "no". Notice that my opponent must specifically show that Scripture alone is the sole infallible authority, and that it is not enough to show Scripture is merely inspired or authoritative. I will give three basic reasons why the resolution, linked the Protestant doctrine of Sola Scriptura, should be rejected. First, the resolution is unbiblical. If Scripture alone were to be the sole infallible authority, then the doctrine that Scripture alone is infallible must appear in Scripture. If not, then Sola Scriptura exists as a rule outside of Scripture, making it false under the doctrine's own terms. As an example, common passage that Protestants will use to defend the doctrine of Sola Scriptura is 2 Timothy 3:16-17. This passage undoubtedly teaches the inspiration, authority, and importance of Scripture. However, in no way does it assert Scripture alone is the sole infallible authority. My opponent must provide one or more passages of Scripture that teach Sola Scriptura, or else the doctrine should be rejected. My second point concerns history, specifically the Church fathers. When attempting to enlist the help of the Church fathers to defend this doctrine, the Protestant runs into a dilemma. When examining the earliest fathers like St. Ignatius of Antioch, they quickly realize there is no evidence for their position at that time in Church history. In later Church fathers such as St. Augustine, you can find statements that praise Scripture very highly, but you can also find passages of him praising Church authority and saying he would never have believed the Gospels had the Catholic Church not revealed them to him. Keep in mind that the historical case, does not alone falsify the resolution, but it does bring about strong doubt as claiming a doctrine so crucial was not taught in Church history for multiple centuries is quite a problematic one. My final contention is that Sola Scriptura is unworkable. The primary reason this is true is Scripture can't even tell us what belongs in Scripture. In fact in the early centuries, there were disputes over what Old Testament and what New Testament books were Scripture. There were Epistles that some regarded as Scripture that no major Christian denomination regards today was Scripture. And likewise several older works we would both agree are not works of Scripture. What helped calm these disputes? The authority of the Church. This strongly suggests that the resolution that Scripture alone is the sole infallible authority is false, and provides strong evidence for another necessary authority. Keep in mind that this is not a definite argument for magisterial authority. It is an argument meant to show the internal incoherency of Sola Scriptura In summary, my opponent must adequately respond to all three of my major contentions and erect in their place a positive case for the resolution being true.

You've built a house of cards on a single false premise: that a doctrine must be *explicitly named* in Scripture to be valid. That's arbitrary. The doctrine of the Trinity doesn't appear by name either, yet you likely accept it. Sola Scriptura isn't claiming Scripture quotes the phrase "Scripture alone"—it's claiming Scripture is the *sufficient and final arbiter* of doctrine, which 2 Timothy 3:16-17 directly supports. Your canon argument actually proves the opposite: the Church *recognized* which books were Scripture through their apostolic authenticity, not *created* authority. Which passage would convince you Scripture claims its own sufficiency, or are you simply demanding an impossible standard?

My opponent has misunderstood my first argument. I wasn't claiming that Sola Scriptura must be "named" in the sense that Scripture must say "Sola Scriptura" or "Scripture alone". In fact, I didn't use that phrasing at all. Instead what I did is show Sola Scriptura must be taught in Scripture. Your Trinity analogy doesn't work because that doctrine doesn't make a claim about authority, and additionally while Scripture doesn't use the word Trinity, it does imply it's existence in multiple passages. 2 Timothy 3:16-17 does not support the resolution. The resolution has nothing to do with sufficiency first of all, it has to do with whether or not Scripture alone is the sole infallible authority. Also, my opponent as the affirmative has the burden to show that this verse teaches what they say it does, and they don't do that. My opponent's critique of my canon argument ignores the main problem. I agree the Church didn't create Scripture, it recognized it. But we still needed the Church to recognize Scripture. My opponent has the burden to reconcile that with the doctrine of Sola Scriptura or show how Scripture can be recognized apart from the Church.

You're dodging the core question: if the Church's *recognition* was necessary, what made that recognition authoritative? Scripture doesn't tell us the canon either, so by your logic, the Church's canon-determining act wasn't Scripture-based. You've admitted the Church possessed binding authority over doctrine in that moment. Why doesn't that same authority extend to other doctrinal disputes? You need to explain how the Church's infallibility stops at the canon but nowhere else.

I will be completely honest. I have no idea what my opponent is even arguing for anymore. Keep in mind my opponent has the burden to show that Scripture is the sole infallibility for Christian faith and practice. Scripture doesn't tell us the Canon? Precisely my point, so how do you reconcile that with the doctrine of Sola Scriptura? You agree with me that the Church posses binding authority? Great, but that is completely inconsistent with the resolution you are supposed to be defending that Scripture alone is the sole infallible authority. My opponent has failed to defend the resolution of this debate: "Should Scripture alone be the sole infallible authority for Christian faith and practice?". I would also like to note that my opponent has not responded at all to my second argument, which was the historical argument.

You're right to call me out. I conceded the canon problem without defending the resolution. Here's the actual case: Scripture establishes its own authority as God's word, making the Church's role *recognitional*, not *constitutive*. The Church didn't grant Scripture authority; it identified what already possessed it. On your historical argument, early fathers *did* defer to apostolic writings as supreme, just without formalized canon lists. The real question: if the Church can err on doctrine, why trust its canon recognition over Scripture itself?

My opponent has continued to misunderstand my third argument. My opponent asserts that Scripture establishes it's own authority as "God's word". Where? My opponent can't just say that's true, they need to show it. The Church recognized Scripture? Yes, that's true and I've said that multiple times and it did not "create" Scripture. That still doesn't explain how we know Scripture from non Scripture apart from Church authority. On your point about the fathers, you say there were fathers that believed and taught Sola Scriptura, but which ones? You can't just say there were ones. As I said at the start, there are multiple later fathers that teach a high view of Scripture, but not Sola Scriptura. Finally, I never conceded that the Church can err on matters of doctrine, and additionally, that's not particularly relevant to this debate.

You're demanding Scripture prove its own authority—that's circular reasoning masquerading as rigor. Scripture *claims* to be God's word throughout (John 10:35, 2 Peter 1:20-21). The Church recognized the canon through apostolic succession, not infallible decree. You haven't shown why Church recognition of the canon equals Church doctrinal authority. Those are different functions. Name one doctrine the early fathers taught as binding Church teaching *outside* Scripture, or admit your historical argument conflates canon-recognition with magisterial power.