Why do you think the Church canonized the Scriptures? To protect the inspired works of the Faith once delivered from forgeries (such as various Gnostic "gospels" our media call "Chirstian").
Besides, this is not some "corruption" of the Church at Trent; this is something that was taught by the Church (Greek and Latin) from the beginning.
Not this again so soon!!! Wait for 4,000 posts and then we'll bring up "tradition" again. :O)