Take your Bible, and find in it any passages that--interpreted with a literal, grammatical, historical, cultural hermeneutic--proves me wrong.
Take your footing, shear from it any reference to extra-biblical fallible tradition, and rests only on Biblical truths, that proves your position Scriptural.
Paul's gospel is my gospel. It stands solely on the Scriptures revealed to him and his fellow apostles, and explained by them. Yours is not, and cannot stand without extra layers of post-apostolic excuses, IMHO.