Salvation by divine "revelation" is even more akin to the gnostics of the first and second centuries than salvation by knowledge acquired by sense perception, for divine "revelation" per se has nothing to do with matter or the incarnation. In fact, talking about "spiritual hearing" or any other species of higher knowledge or spiritual knowledge is even more evidence of gnosticism. For that is exactly what the gnostics of the first centuries claimed, that they were saved by a higher [hidden to the unenlightened], spiritual knowledge.
-A8