Nowhere do I know of Church law that says: Follow your bishop into uncertainty and error, and in some cases, destruction, out of obedience.
“Wherever the bishop appears, there let the people be; as wherever Jesus Christ is, there is the catholic Church. It is not lawful to baptize or give communion without the consent of the bishop. On the other hand, whatever has his approval is pleasing to God. Thus, whatever is done will be safe and valid.” (St Ignatius of Antioch,
Letter to the Smyrnaeans 8)
“Clerics are bound by a special obligation to show reverence and obedience to the Supreme Pontiff and their own ordinary.” (CIC Can. 273)
“Priests, never losing sight of the fullness of the priesthood which the bishops enjoy, must respect in them the authority of Christ, the Supreme Shepherd. They must therefore stand by their bishops in sincere charity and obedience.” (Presbyterorum Ordinis 7)
These are just a few references. Of course, none of them make use of terms such as “uncertainty”, “error” or “destruction”. But why should they? It is understood that the official position of the Church, confirmed the Holy Father and the College of Bishops, is valid and free of error.
I think most SSPX priests would have no problem obeying their bishop if they professed the True Faith whole and entire, and not just sometimes.
We should never try to justify schism. This is the same argument used by the Eastern and Oriental Orthodox Churches, referring to what they call “innovations” and “errors” of the West. Traditional Catholics regard Orthodox as schismatic because they are not in communion with Rome. What does that say about the SSPX?
Those who reject Vatican II with the argument that it “changed” or “contradicted” Catholic doctrine have no real argument. The Council itself declared that it was pastoral in nature and that it did not intend to change doctrine. And as for those perceived “changes”, it would not be the first time that the Church clarifies or expands its doctrines, even as some perceive it as a “contradiction” or “change”. A good example is that of the
Filioque clause. The original Creed composed at the First Council of Nicaea was later expanded at the First Council of Constantinople. The latter prohibit anyone from changing, altering or adding to this Creed. The Council of Toledo, which was not ecumenical, added the
Filioque clause to the Creed. That was done almost 500 years before the Great Schism and to this date, it is still a controversy between the Catholic and Eastern Orthodox Churches.
This is just one of many similar examples. Those who reject the “changes” or “contradictions” of Vatican II, support and defend the *Filioque *clause against the Eastern Orthodox Churches, which they consider schismatic. However, groups such as the SSPX, which are definitely schismatic, i.e. not in full communion with Rome, are defended. That is, IMHO, a contradiction in itself.