So what the heck is the difference between this and saying that the "soul", "life force",
Life force and soul are not innerchangable to JWs.
Soul is the combo of breath of life/life force and the body. "And adam became a soul" Not "And adam was given a soul"
So for the dubs to sing "but cannot destroy the soul" sounds like a vestige from old christendom. Remove the life force or body from the equation and the soul ceases to exist. So according to dub lore, killing the body is the same as destroying the soul.
Its just another dub stupidity.