The canon, as it is used today, refers to an authoritative list of the books of Scripture. Because divine authorship is what makes a writing Scripture, the canon of Scripture is largely seen as co-extensive with inspiration. If the Holy Spirit inspired a work, it is canonical. If He did not inspire a work (i.e. was not its primary author), it is not canonical. The modern definition of canon thus does not permit categories like "uninspired canonical books" or "inspired non-canonical books." It's either inspired (canonical) or it is not.
