Good teaching points us to truth. False teaching leads us into error. Catholic teachings evolved over 2000 years and have moved steadily away from the Truth of Jesusā and Paulās and Peterās and Johnās teachings in the Bible.
We believe the Church has steadily moved toward the truth of the teachings in the Bible. In part, we believe it because the Bible says it: āwhen he comes, the Spirit of truth, he will guide you to all truthā¦ā Jn 16:13. Part of our belief in Christ is based on this promise, on the Scripture that records it, and on the Spirit who lives with us. So yes, there is an element of āwe say soā in our faith.
But we do not rely exclusively on that. That would be a heresy called fideism, where we accept something as true just because an auhority says so. Our relationship with truth is more complex than that and rests on our relationship with Christ who is Truth. We place our faith in him, and in his Spirit, to guide us. If something is not true, it will be corrected.
The example of ādo penanceā is excellent. Even though the Vulgate made a mistake, doing penance has usually been practiced so as to encourage repentance. The Benedictine emphasis on
conversatio morum, conversion of life, helped keep repentance an important part of ādoing penance.ā There is more involved than just
doing, there are also people who encourage contrition and conversion as essential to the doing.
Hopefully we do not remain in the mistakes we have made. We have made some pretty awful ones over the years, JP2 apologized for some of them in 2000. Humility is a Catholic virtue, at least it has been taught that way for 2000 years even if we have not lived up to it.