Did the Apostles Know they Were Writing Scripture?
There is no good reason to think the predication of “scripture” upon Paul’s writing is anachronistic within Paul’s lifetime.
Theology Seeking Eschatology
There is no good reason to think the predication of “scripture” upon Paul’s writing is anachronistic within Paul’s lifetime.
Maybe the laws of physics have remained constant (but maybe not?), but at the vary least God’s way of relating to the world and his people (which we sometimes call a “covenant”) changes as we move from one age to the next. So the two ages are different, and that difference is a sign to the scoffers and to the church that God is at work and will bring about his purposes and promises.
Fair warning: the message is a bit of a matryoshka doll; it’s an exhortation to love embedded in a encouragement for apologetics embedded in a dissertation about sola scriptura embedded in a Reformation Day sermon.