Then what does this mean?:
"Sacred Tradition and sacred Scripture make up a single sacred deposit of the Word of God, which is entrusted to the Church." -Second Vatican Council. "Dogmatic Consitution on Divine Revelation," no. 10. Or this?
"...the Church does not draw her certainty about all revealed truths from the holy Scriptures alone. Hence, both Scripture and Tradition must be accepted and honored with EQUAL feelings of devotion and reverence." Second Vatican Council, "Dogmatic Constitution on Divine Revelation", no. 9. Or this?:
"[The Church] has always regarded, and continues to regard the Scriptures, taken together with sacred Tradition, as the supreme ruler of her faith." -Second Vatican Council, "Dogmatic Constitution on Divine Revelation", no. 21.
Ex Cathedra notwithstanding, we have found that individuals may go astray; even some of the greatest bishops and theologians of the Church eventually wandered into heresy, although a few such as Augustine came back. Origen was a great theologian, one of the greatest of the early Church. Yet, he fell. Jerome was overruled as to his Scriptural inclusions. It is the Magisterium under the guidance of the Holy Spirit, not John Calvin, Aimee Semple Macpherson, or John Smith individually producing egotistical works and calling them doctrine.