
Literally ignore the other people. They clearly don’t know what they’re talking about, though anise is at least close. The name Lucifer originally referred to Venus, the morning star. It comes from Roman Latin, long before Christianity was a thing, and literally just means light-bringer. The Hebrew name for Venus is mentioned a single time in the bible, referencing a Babylonian king who was given the title. You can probably thank St. Jerome for replacing the Hebrew name for the planet with “Lucifer”, but I’m not certain on that one. I’m not a scholar of mediaeval church Latin. Never, not once in the bible, is Lucifer conflated with the devil. In fact, even the original Satan was called the Adversary not because he was YHWH’s adversary, but because he was effectively God’s District Attorney, prosecuting the wrongs of mortals. The entire conflation with Satan as evil happened between the recording of the Hebrew bible and the development of Christianity. Hence why Satan is pretty much only mentioned in the New Testament.
Pretty much every single thing modern Christians believe about the devil, or especially hell, was made up in the middle ages, and a hefty amount of that by Dante alone.
I recommend reading the wiki pages for both, since they’re interesting reads, but you should definitely check me on this. Don’t take my word for it.
https://en.wikipedia.org/wiki/Satan https://en.wikipedia.org/wiki/Lucifer
Check their earliest histories.




The person asked the question, specifically, why Christians conflate the two, and whether it is true that they are always the same person. Notice that the question asks not just for a dogmatic response, but a comparative religious analysis. While it is true that “modern Christians treat them like the same person”, saying “they are the same person” doesn’t answer the question.