Conceptually, this basic idea shouldn’t be hard to grasp, because it has a lot of similarity to how many religions work. The idea that there is one supreme text and then subsequent, ongoing, authoritative bodies that are subordinate to that supreme text—this is generally characteristic of how Muslims regard the Koran, how most Jews treat the Hebrew Bible, and how Hindus, Buddhists, and Sikhs treat their respective sacred texts. So the broad idea that a religion’s founding texts have unparalleled authority shouldn’t be difficult to grasp.
This is actually an argument against Sola Scriptura. No other religion claims to be the body of Christ or be the Spirit’s dwelling place. That would theoretically make the Church capable of inerrancy.
