Hear ye Bible fags
The Bible was never canonized as being a complete works, and it is an unspoken dogma of Protestants that the Canon is the 66 Protestant books we have today. First century churches were collecting a wide array of texts, with being degrees of veneration and reverence.
Those considered "spurious" varied from church to church, as each church reflected the culture of each region and life, being tied in the baby threads of Evangelical tradition.
Catholicism was one of those threads, which formed a strong grip over all other traditions, with a specific political agenda, that costed those libraries their collections, to be centralized by Rome, and Byzantine.