I definitely think that there is a certain link too Christianity, like Christ's crucification-"the old king is dead,long live the king" and things like John's beheading('head on a silver platter'). The setting(the Roman occupied city of Jerusalem)and various biblical allusions to pillars of salt and pillars of sand suggest a deeper meaning than what is just seen on the surface.
This said, I also realize that the idea of the song carrying references to the French revolution also makes much sense.