the magicians of Egypt, also did the same by their secret arts. For each man cast down his staff, and they became serpents.

This word is interesting, because the scriptures are teaching us that "secret arts" exist and actually are supernatural. We live in such a "natural" world that we forget that the "supernatural" exists and is active in our lives - we must not indulge ourselves in the learning of occult practices, not because they are not real, but specifically because the ARE real.