“Theology properly uses the authority of the canonical Scriptures as an incontrovertible proof, and the authority of the doctorsof the church as one that may properly be used, yet merely as probable. For our faith rests upon the revelation made to the apostles and the prophets who wrote the canonical books, and not on the revelations (if any such there are) made to other doctors.” 37 Thomas Aquinas.
Thomas was a Catholic theologian who believed that the Scriptures are sufficient for faith and understanding, he denied the traditions existed.