I simply don’t see where he points to a source outside of Scripture that is God-breathed and equal in authority to Scripture.
Ok. What you seem to be saying is that you have a blind spot in your perception, and are thus unable to accept that Gregory of Nyssa appeals as much to the “Fathers”, “Traditions”, and “What we received” or was handed down as he does to Sacred Scripture.
There is no Biblical or historical evidence that I am aware of that shows that there are Apostolic teachings that are not in Scripture, but are preserved orally without error and used in creating doctrines.
What I think you are saying is that you are unable to see what is present in the historical record. You have stated that you cannot accept what is written in the Scriptures about Sacred Tradition, you cannot accept that God prepared a people for Himself by teaching them how to preserve the Sacred Teachings orally, and that you reject any and all part of Gregory’s writings that refer to Sacred Tradition in favor of focusing only on those that reference the Scriptures as authorative.
I even gave you examples of doctrines that are not explicit in Scripture, but that were later proclaimed as dogma based upon the Sacred Tradition (how the Scriptures are interpreted). What I think you are saying is that you don’t realize these doctrines are based on Sacred Tradition (like the canon of the NT, whose table of contents comes from Sacred Tradition).
Your quotes mentioned “traditions of the fathers.” These are teachings by the church fathers. These are not “traditions of the Apostles.”
Yes, the Sacred Tradition (teaching of the Apostles) was handed down through the paradosis. The Bishops were entrusted with this divine deposit of faith. I understand that, because Gregory calls it by different names, it does not meet the criteria you imposed to define it as Sacred Tradition. Catholics understand these are reference to the Teachings of the Apostles preserved infallibly by the Holy Spirit in the Church.
It seems like you are inadvertently taking the word tradition out of context. At that time tradition was used to mean teaching or instruction.
There is a distinction between human traditions (customs of men) and the Sacred Traditions, which came from the Apostles and are used to define doctrine. Sacred Tradition is the Word of God referred to in the Scriptures. The Apostles commanded that we hold firm to this Word of God, immutable, unchanging.
So then, brothers, stand firm and hold to the traditions that you were taught by us, either by our spoken word or by our letter. 2 Thess. 2:15.
Your quotes mentioned “traditions of the fathers.” These are teachings by the church fathers. These are not “traditions of the Apostles.”
What makes you think not? Or are you thinking the Apostles is instructing them to “hold fast” to some human customs like haircuts, clothing, or dietary norms?