User blog comment:Kajune/Lucifer, first son?/@comment-26982641-20160407201946/@comment-34326521-20160407204852

You still haven't answered the question. Why can't it change? Writers do as they please with their work. If they want to retcon Lucifer into the oldest archangel, they can. If they want to recton Lucifer into a potato-powered alarm clock, they can. There is nothing a writer can't change, because it's their work.