dogma? you don't find ANY dogma in the bible. Dogma is apart from scripture, it is definition of teaching FROM scripture. And the trinity is most definitely present.
it was the community of believers that supported it and decided it to be a dogma...based on the Bible ....and...further you can come up with millions of other dogmas, that you individuallycan come to believe and make them bible based..... Sola scriptura opened the door for all kind of interpretation.... period.
sure, you can come up with pretty much anything you want, if you twist it enough. how many are remotely credible?
(note, I am not calling any dogma you might have as IN-credible. Just noting, that most of them can be catagorized quite easily.)
who sets the standards that make some opinions valid and others not valid?
there is no "standard." Some are easy to identify, some not. Some are in question.
For example when the fathers put the bible together they had some critiria that all agreed such as was ...1.validity of scripture etc.... 2. historicity...and so on as measures to compline the Bible... who... in the wide wide world of Sola scriptura will be 'assinged" to do that? the agnostics? the ex atheists...?? people outside the tradtion of Christianity will defenately will not call you up to ask your opinion about what they would believe.....
Think about it....
God bless,
Philothei
sorry, I'm really not sure what you are asking here.