I was asking how one starts with Sola Scriptura when there are widely different, including the Gnostics, views of what is inspired, how this is accurately translated and what the translation means.
Does Sola Scriptura assume its own canon/translation/interpretation? Do you accept another's authority, choose a tradition or examine the source document's provenance and translations for yourself?
Every book that is a part of the NT was written by an Apostle or someone closely associated with an Apostle. At the end of the Apostolic Era no other inspired writings appeared. Although a lot of forgeries did appear such as the "Protoevangelium of James", which is the source of so many myths concerning Mary, they were quickly recognized as such.
The question of understanding is the result of prayer, meditation and being guided by the Holy Spirit. If instead you wish to deduce your understanding from what others tell you, you will become dependent upon them in no short order. Hopefully for your sake they will ALWAYS be good people.
I rather trust in the LORD. Jesus gave us all the proof we need. He proved he was exactly who he said he was.
"Does Sola Scriptura assume its own canon/translation/interpretation? Do you accept another's authority, choose a tradition..."
I understand you are a product of a system where you have been taught it is better to have others think for you than to think for yourself, but your insistence on mischaracterizing Sola Scriptura is silly.