I agree. It seems pretty clear to me, but of course, as has been pointed out to me by several theists, many verses in the bible actually don't mean what they say. That's fine. This verse does not actually mean that a baptized Christian can drink poison and live and heal the sick.
Ok. It doesn't mean what it says. Metaphor and simile and all that junk I learned in college.
So, uh, how do you tell when the bible means what it says and when it doesn't, and why do so many believers disagree on this? Just curious.