Are the Holy Scriptures of the Old and New Testaments the Word of God or not?
You are begging the question and throwing a red herring as to whether or not the Protestant dogma of Sola Scriptura is biblical.
“red herring” huh? I think not. If you cannot answer a question so simple and straight-forward ... well.
So, are the Holy Scriptures of the Old and New Testaments the Word of God or not? Yes or no.