Luciferianism describes different religious and philosophical approaches that give Lucifer a positive role. Belief, practice, and identity vary among writers and communities.
Religious syncretism concerns the combination of ideas, figures, and practices from different traditions. Similarity of names or imagery alone does not establish identity or historical continuity.
Isaiah 14 addresses the downfall of a ruler through an image of a fallen morning star. Later religious interpretations connect the passage with Lucifer and Satan.