Diotrophes and the Doctrine of the Visible Church

The Westminster Standards distinguish between the visible church and the invisible church. For example, we can read question and answer 61 in the Larger Catechism (see questions 61 through 65): "Are they saved who hear the gospel and live in the church? All that hear the gospel and live in the visible church are not saved, but they only who are true members of the church invisible." I agree with this statement as consistent with the Word of God. 

In contrast, we have the doctrine of the Anabaptists and some Baptists that the church has only one form, and consists only of the regenerate. They thus deny the existence of the visible church as described by the catechism. I consider this to be a false and dangerous doctrine. First, it is not a power given to men to judge the heart, such that we could infallible mark who is and who is not regenerate. And second, it creates chaos in the government of the church. And third, it is unbiblical. 

The Apostle John tells us of a man in the church, Diotrophes. We would call him an elder or overseer. "I have written something to the church, but Diotrophes, who likes to put himself first, does not acknowledge our authority. So, if I come, I will being up what he is doing, talking wicked nonsense against us. And not content with that, he refuses to welcome the brothers, and also stops those who want to, and puts them out of the church" (III John 1:9-10). 

So, we have John's warning of this man Diotrophes, a member of the church government in the congregation to which this epistle was written. John's warning is that Diotrophes is a false teacher who uses his power to put good men out of the church, an abuse of church discipline. 

The issue that this account presents for the doctrine we are considering is that the bad guy, Diotrophes, is a member of the church, while the good guys, whose names we are not given, are not members, due to their excommunication. If the denial of the visible and invisible church distinction is correct, then the Anabaptist must claim that Diotrophes is the true Christian while the friends of John are not. But that would be exactly opposite of John's warning to Gaius! 

On the other hand, the traditional Protestant doctrine, that of the Westminster Standards, easily resolves the situation: As a false professor, Diotrophes may be a member of the visible church, but he cannot be a member of the invisible church. And of the rest, regardless of the illegitimate action of Diotrophes, the friends of John are true believers, and, therefore, members of the invisible church, even though their membership in the visible church may have been canceled by the unlawful use of excommunication.