>> Paul never told us that we needed a Bible much less which Books were Sacred and which were not. <<
.
You are confused?
To Paul, and to the other apostles, “scripture” was the Tanakh. And he preached it as vital to salvation constantly.
And, since you can not find such authority in WRITING, anywhere, you obviously support the “Oral Tradition” in some ways, even though you are too stubborn to admit it.
“They just KNEW” you say? How did they know, and who told them, and how were they told, and how did they pass that knowledge down through the ages?
ORAL TRADITION!