I've been wondering something.
Was Paul even aware at the time he wrote his letters to congregations and his brethren, that his letters were going to be part of some cannonized holy scripture in the future? It doesn't seem like it does it? No prophetic statements really, just management of the primitive Christians.
What reason is there for Pauls letters to be deemed as somehow coming from God, rather than just a (maybe) historical narrative of the early congregation?