On the Damascus road, when Christ spoke to Paul, revealing himself to him, Paul’s experience did not form a basis for theological conclusions. Paul made his conclusion from the fact that Christ externally and objectively spoke to him. Surely, he encountered revelation subjectively – that is, he experienced it – but the very nature of his experience as a subject demonstrates that a prior, external object (God’s revelation) existed. And he then based his conclusions about the revealed risen Christ on the fact of the Hebrew Scriptures, the objective standard of theological conclusions. He saw in these the objective testimony to the Messiah, thereby verifying his experience by the prior objective standard of previous revelation. Therefore the objective fact of revelation, both on the Damascus road and in the Old Testament Scriptures, stood over Paul’s experience, forming the basis for his theological conclusions.
(This is in response to Roger Olson’s chapter in Reformed and Always Reforming on transformation being prior to information).