Please show us where Paul was only talking about written texts? You can’t prove it so your argument is fundamentally flawed.
I didn't say he was talking about texts. Just show an infallible source that proves the apostles taught the assumption of Mary and the requirement to believe that. If you can't do that then the text is all we are left with as it's the only source for what they taught. Do you have that source?
Fail Logic 101; eh?