I think this song is about religious people who try to tell non-believers that they are going to burn in Hell if they don't accept Jesus. He's saying that you can't get them to see your point of view, so all you can do is wish them well and go on about your life.
The lyrics are vague enough that they could apply to any situation in which one person or group is so strident in their position that they can't be bothered to consider alternative viewpoints. However, the religious references (spirits, the devil, judgment/mercy, hell, and demons) make me think he's referring to religious people, particularly fundamentalist Christians.
I think this song is about religious people who try to tell non-believers that they are going to burn in Hell if they don't accept Jesus. He's saying that you can't get them to see your point of view, so all you can do is wish them well and go on about your life.
The lyrics are vague enough that they could apply to any situation in which one person or group is so strident in their position that they can't be bothered to consider alternative viewpoints. However, the religious references (spirits, the devil, judgment/mercy, hell, and demons) make me think he's referring to religious people, particularly fundamentalist Christians.