What do you mean "from standing?"
I'm quoting Saint Gregory the Great's language.
The Church teaching the Truth. If the Church embraces one explicit falsehood and teaches it, the Church no longer teaches the Truth in it's entirety and instead teaches falsehood in it's entirety.
The distinction has to be made between "the Church" and "the Churchmen"…A Churchman, even a Pope may not reference the Athanasian Creed or even the Nicene Creed but that doesn't stop the Athanasian Creed or Nicene from being the teaching of the Church.
What "it" are you referring to? Can you name a single dogma or truth of the faith, the universal Church is required to renounce or a new policy binding the faithful that is heresy?
Intercommunion with Lutherans...intercommunion with Orthodox...the change to the Death Penalty...communion while in a state of adultery..."extraordinary Eucharistic ministers"…
Intercommunions are scandals by Churchmen. I've never been bound to believe that I can validly receive communion from a Lutheran minister. It's not even a option for a Catholic. Giving communion to a Lutheran is a scandal and sacrilege unless they comport to the most narrow understanding of when it's permissible. (ie. Deathbed conversion.)
The Orthodox is a situation of in case of absolute necessity a Catholic may receive valid sacraments from them. (whether they will give them is another story)
The death penalty is an error on the part of the Pope and he's wrong whether it goes into the catechism or not. His personal opinion can't bind the whole Church to the opposite of a firmly established and apostolic (even pre-Apostolic ) teaching.
If I were a Priest of a Church and I rejected a Saint who was canonized, could I not be excommunicated?
It depends on what you mean by "rejecting" are you claiming that the name of the saint must be expunged? By what authority? If you are skeptical of the soul of the named being in Heaven, why would you speak of some kind of judgment for which you have no power to exclaim?
To know a soul is damned requires the same new revelation that would be required to know with certainty a soul is in Heaven.
Well, a couple of things.
1. A revelation should not be against the authority of the Church, which you argued on the thread "A Theory about the Crisis in the Church..."
A private revelation can't bind the Church since it is not part of the Deposit of Faith. Similarly, a canonization cannot be bound as a part of public revelation since it is post-apostolic. Vatican I defines the Pope as not being established to define new doctrines, but simply to protect the Deposit of Faith given by the Apostles. The Assumption of the Blessed Mother is infallible because it is taught as Apostolic and not a canonization from an event that occurred after the Apostles died off.
2. If Saint Cyril had the authority to rebuke Nestorius while he was still alive, St. Leo the Great and those at Chalcedon had the authority to rebuke Eutyches and Nestorius, if the Fathers of the 6th Ecumenical Council had the authority to curse the dead Pope Honorius, if Saint Paul had the authority to not only rebuke Saint Peter himself, but several Church communities that delved into Judaization, Paganism, Adultery, and Schism, etc., but we are not allowed to rebuke the actions of those who did horrible things, one has to ask the question why for 1960 years the Church was able to curse people and now it's a sin to do so.
We need to clarify the language (which changes over several millennia) a rebuke is simply a correction from a falsehood to the truth. A curse in its true sense is an appeal to demons to harm others.
The prudential element of how and when and if a rebuke is necessary is simply a human decision hopefully guided by the grace of God. If it's truly prudential, it will bear fruit at some point. If not, it's simply cowardice or foolhardiness or disloyalty by the individuals involved, no matter what office they hold. And in those cases it is necessary for inferiors to rebuke superiors.
Every Church venerates Pope Paul VI, whether you like it or not, by the authority of the Pope himself.
So what?
How is it that the Church cursed Arius, Nestorius, Eutyches, Tertullian, Origen, Luther, Calvin, Henry VIII, but Pope Paul VI, who was the Pope, arguably did things just as bad if not worse, is a Saint? Why did the Church curse these other people in the first place - and that's not to mention the burning at the stake of several heretics and sinners, like Bruno?
Pope Paul VI did a lot of imprudent, foolish, things, mostly in the area of governance and policy of the Church. He made no outright schismatic nor heretical moves like Luther, Origen, Henry or Calvin or Hobbes or Arius etc.
Ultimately, you go through his Credo of the People of God and you wind up with the Catholic faith. Humanae Vitae is another one. When it came time to protecting the Deposit of Faith from actual corruption, as pathetic as he was, he didn't buckle. None of that excuses his total misfire in understanding the world and the decisions that came from and followed the Council. But all of those can actually be reversed by future Popes.
We are not bound to subjective, non-magisterially backed commentaries in Catechisms. That's absurd on its face. We are not bound to every statement in a papal bull or encyclical or conciliar document, just the doctrinal aspect.
No Catechism is infallible and we're not bound to every Catechisms assertions nor formulations.
Can you provide evidence that the Catechism published by the Congregation for the Doctrine of the Faith isn't magisterial?
First, I pointed out that the commentaries within the catechism that are not magisterial are not binding. The magisterial teachings that are repeated in the Catechism are binding. You can't reject papal infallibility in the Catechism because it simply repeats Vatican I, or the Assumption or the teaching on the Real Presence.
But commentaries that are inaccurate, (eg. the "positive reformulation" of the dogma of Outside the Church No Salvation is not an actual reformulation. It expresses a different idea.) are not binding.
The CCC also goes on with commentaries about Baptism of Blood and Baptism of Desire and "trust in God" for unbaptized babies which are hypotheses. while at the same time the CCC states that the Catholic Church knows of no other way to get into Heaven outside of the sacrament.
The CCC also speculates erroneously that people are born homosexual. Stated with no proof, not being a part of the Deposit of Faith, any Catholic is free to point out the error of the statement.
But interesting argument; still, it's problematic to me at least doctrinally that the Church has canonized someone whose life is contradictory to the Saints of the past 1960 years, especially to the likes of Pope Pius X (who literally has the opposite life to Pope Paul VI), and even Saint Benedict, who destroyed a sanctuary to Apollo and created an oratory to Saint John the Apostle (who clearly didn't respect different religions in peace and love, like his holiness commanded us to do).
Papal canonizations are only 1000 years old. What we are dealing with today is the taking of a pious and carefully done custom and the politicization of it. Only 3 Popes were canonized as saints in the last thousand years, prior to Vatican II. Now, every Pope involved with Vatican II is canonized with the exception of Luciani (who probably will be). They are participation trophies now. I'm surprised Francis hasn't canonized Benedict XVI yet.
No one actually knows the interior disposition or spiritual struggles of any of these popes. We see things through the media from thousands of miles away and in a very limited form. They may be in Heaven, Hell or Purgatory. God will sort it out. If one invokes them honestly for intercession, God will not waste the prayer or ignore the petition. If you doubt their status, pray FOR their souls. And invoke saints you have more faith in. St. Michael, St. Joseph, the Blessed Mother, St. John the Baptist or St. Peter or Pius V, X etc. Make a general petition to all saints and your Guardian Angel. There's more than enough help to call upon.