Hey CompSciGuy…
As a convert who is confident in the Catholic faith, I have to say that I don’t really think the “where in the Bible does it say the Bible is the only authority” as a very good argument against sola scriptura…
I kind of understand your point. Of course, I think the whole* “where in the Bible does it say the Bible is the only authority”* - idea comes from protestants asking catholics similar questions but catholics are not sola scriptura proponents so that whole scripture alone mentality is not a hard and fast rule for catholics even though, as far as I can tell, every catholic tradition, other than the assumption, is grounded in scripture. Even the assumption makes perfect sense if Mary’s sinlessness is grounded in scripture which of course it is.
Regarding the TV set up instruction manual analogy it doesn’t appear that anyone is actually claiming that the manual says that those instructions are all one needs to use the TV like you mentioned.
If scripture alone, as the Christians sole rule of faith does not have to be explicitly/implicitly spelled out within the pages of scripture then how can one know that scripture alone is in fact the Christians sole rule of faith? They would have to defer to some outside authority.
That being said, the following I think are good arguments against sola scriptura:
- Tradition has always had a place of authority and has always played a major role in the creation of Christian dogma from the earliest times of the Church. The authority of the Church has always been regarded as the source of truth before the reformation.
2
. Like others have already stated, the Bible itself is a product of that Tradition and Church authority, not vice-versa.
The whole chicken and the egg argument…
- The Bible is not comprehensive in its teaching of the faith. There are elements of the faith, such as the sacraments and the Trinity, that are talked about in scripture but not fully explained. That is why there are disagreements among Protestants on matters such as what the Eucharist is, what baptism really is, how they are to be performed/observed, etc.
Now to this the Protestant may reply “well these things are ‘non-essentials,’ all that matters is that you believe that Jesus was the Son of God and died on the cross and we should repent of our sins and accept him as our savior. Everything else, like the sacraments, are up for interpretation.” To this I would ask, why would Jesus establish a faith, give us sacraments and not have something specific in mind when he did so?
Many will simply say: where is the word “sacrament” found in the bible? To which I suppose I would ask: where in the bible does the bible talk about essential and non-essential teachings?
Even if scripture said: scripture alone is the Christians sole rule of faith, God would surely leave His church with a means of interpreting scripture via the guidance of the HS so as to avoid the haphazard, willy-nilly approach we see when it comes to private interpretation as each and every Christian is supposedly moved by the HS - I would hope!
Did he come to give us a Church or just a template for different Churches?
Good point?

Of course, I think, catholics suggesting that Jesus founded only the one catholic church (which is true in my opinion) - can be very off-putting to protestants because it seems akin to invalidating their own man-made church, which is not the case. Even the CCC says:
817 In fact, "in this one and only Church of God from its very beginnings there arose certain rifts, which the Apostle strongly censures as damnable. But in subsequent centuries much more serious dissensions appeared and large communities became separated from full communion with the Catholic Church - for which, often enough, men of both sides were to blame."269 The ruptures that wound the unity of Christ’s Body - here we must distinguish heresy, apostasy, and schism270 - do not occur without human sin… Where there are sins, there are also divisions, schisms, heresies, and disputes. Where there is virtue, however, there also are harmony and unity, from which arise the one heart and one soul of all believers.271
818 "However, one cannot charge with the sin of the separation those who at present are born into these communities [that resulted from such separation] and in them are brought up in the faith of Christ, and the Catholic Church accepts them with respect and affection as brothers . . . . All who have been justified by faith in Baptism are incorporated into Christ; they therefore have a right to be called Christians, and with good reason are accepted as brothers in the Lord by the children of the Catholic Church."272
819 "Furthermore, many elements of sanctification and of truth"273 are found outside the visible confines of the Catholic Church: "the written Word of God; the life of grace; faith, hope, and charity, with the other interior gifts of the Holy Spirit, as well as visible elements."274 Christ’s Spirit uses these Churches and ecclesial communities as means of salvation, whose power derives from the fullness of grace and truth that Christ has entrusted to the Catholic Church. All these blessings come from Christ and lead to him,275 and are in themselves calls to "Catholic unity."276
The way Paul and the apostles talk about things like the Eucharist and baptism, they speak as if we are already expected to know what they are. That’s because these things were taught by the Church in those days, as they are today.
