"Kruger’s version of self-attestation is actually very different than Calvin’s, but nevertheless, he claims we have every biblical reason to believe that the Spirit’s work is within the hearts of His people. He says both individually and corporately, it is affectual and that Christ makes good on His promise that My sheep hear My voice and they follow Me. He’s quoting part of John 10:27. Later, both sums it up, “Christ will establish and build his church by causing the church to accept just this canon and by means of the assistance and witness of the Holy Spirit to recognize it as His.”
Now, there’s two problems with this. One of those is, the church corporately did not agree on the Protestant canon. The church had corporately agreed on a 73-book canon that Protestants thought was wrong. So if your argument is, the Holy Spirit led the church collectively, I don’t care if you mean magisterium-like leadership of the church or whether you mean the overall just like Christian community. Overwhelmingly, at the time of the Reformation, virtually everybody used a 73-book Bible, especially in the West. You will find a handful of exceptions, but they’re just at their handful. If you’re arguing that the Holy Spirit is corporately leading His people into the truth and there is a single Bible, the Latin Vulgate, used by almost every western Christian and has 73 books, and you think actually the corporate church got it wrong, choose an argument.
Emphasis mine:
You can’t say both The Holy Spirit is leading the church collectively into the truth and the church collectively screwed this one up and it needed reformation. They can’t both be right.
End Emphasis.
Nevertheless, the other problem is just that Scripture is being badly abused here in this citation to John 10:27. Go read John 10, particularly 24 to 28, and you’ll see Jesus is saying nothing about how His followers will know exactly which books are in the Bible. There’s none of that. There’s nothing that comes even closer, hints at that. He’s asked the question by the Jewish listeners, who He’s just given the good shepherd, He’s given two, one about the sheep gate, about he’s going to choose a shepherd, lead his people, and they’ll hear his voice, and the second about how He’s the good shepherd. The Jews then gather around and say, “How long will you keep us in suspense? If you are the Christ, tell us plainly. Jesus then answers and says, ‘I told you, and you do not believe. The works that I do in my Father’s name, they bear witness to Me. But you do not believe, because you do not belong to My sheep. My sheep hear My voice, and I know them, and they follow Me.'”
So he’s not saying some special internal charismatic gift.
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Pentecost hasn’t even happened.
End.
He’s saying people are convicted on the basis of what? On the basis of the works that He’s doing in His Father’s name. He’s doing miracles, and those whose hearts are open to it, are saying this is the Messiah. They don’t understand everything. They don’t have all truth. You wouldn’t need only read the New Testament to realize they don’t have a perfect understanding of everything Jesus is doing. He’s not saying they have a perfect Bible, even less. There’s not even a hint about that anywhere in the text. This is just taking one sentence, “My sheep hear my voice, and I know them, and they follow Me.” And saying, “Therefore, if they follow Him, they must have a perfect Bible.” That doesn’t logically follow at all.
That’s simply made up. But again, if you’re going to say that, if you’re going to say anyone who is one of the sheep of Christ will have a 66-book Protestant Bible, you need to be ready to say there were
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no followers of Christ between the time of the apostles and the reformation, or if there were, they were so small, we can count the known examples of them on two hands. That is remarkable if you’re going to make that claim.
Otherwise, just admit, this verse does not teach what Kruger and others are manipulating it to say. It simply doesn’t teach that you’ll have some private internal gift. It’s not even about private internal gifts at all. It’s about the faithful seeing the external actions of Christ and responding to them because they realize that these miracles could only be done by Christ. The works He’s talking about are His signs, are His miracles, so it doesn’t teach that. The reformers are simply making this doctrine up.
Now I’m going to return to Kruger. As I said, his version of what he calls self-attestation actually differs from Calvin’s. He claims that this does not mean that we should expect to find perfect unity among the church, but it doesn’t mean that we should expect to find a corporate or covenantal unity, which is precisely what we do find. Two arguments here.
First, we don’t actually find that in the Protestant direction. Protestants have a 66-book Bible. Nobody else does. Nobody prior to, like, “Find me a Christian community prior to the Reformation that has a 66-book Bible.” If your argument is for a covenantal unity or a corporate unity, there should be no problem.
But two, he claims that the internal witness of the Scriptures doesn’t mean we should expect to find perfect unity among the church, but it does to Calvin. Remember, he says, “These questions are as easy as telling black from white or bitter from sweet.”? Everybody can do that.
If it’s really that easy, which is Calvin’s argument and makes sense, if you really have a special supernatural infallibility, you shouldn’t be batting 300, 400, 500. You should be batting 1,000. So what in the world is going on here if any of this stuff is true? That’s the first problem. The reformers are simply making this up.
The second problem is
Emphasis:
...the reformers, bizarrely, don’t actually agree on the biblical canon. I’m going to give just a couple examples.
End emphasis.
The first one, Martin Luther. In 1522 and his preface to the Revelation of John, he says, “About this book of the Revelation of John, I leave everyone free to hold his own opinions. I would not have anyone bound to my opinion or judgment. I say what I feel. I miss more than one thing in this book, and it makes me consider it to be neither apostolic nor prophetic.”
Full episode:

Catholic Answers
Is the Bible “Self-Attesting,” or Do We Need the Church?
Is the Bible "self-attesting"? In other words, can we tell which books belong in the Bible from the Bible itself, or do we need the Church?