The Body Soul Dynamic in Luke 12

Luke 12 is perhaps most notorious for this one verse. Everyone who speaks a word against the son of man will be forgiven, but the one who blasphemes against the holy spirit will not be forgiven. There's something about publicity and privacy that seems to run through the chapter. And then you get, in the next section, fear not those who can kill the body, but fear the one who can throw the soul into hell.