This is true utilyan, however that authority came long before the leaven of corruption entered into the hierarchy of the Church of Rome.
How were the books of the Bible chosen?
The Catholic Church did do a very good job with the preservation of the Word of God.
for nearly 1000 years she preserved the Word of God in the Latin Vulgate.
I am not a Protestant even by the nomenclature of the Catholic Church - I am separated - a Separatist.
I believe the Reformation was largely a failure.
HankD (a former Catholic - one of the "separated brethren")