I grew up in a Catholic country and some religious descriptions are told by our elders. One of those is the idea that Lucifer is described as: the most beautiful, the most powerful, the wisest angel that [God created](#usually it is followed by "that's why he was so jealous of humans, when God created us as imperfect beings, how could He love humans when He created angels?", but that is irrelevant for the question, even though it has more biblical evidence than the sentence in question), but this affirmative is not find in the Bible, so I was wondering where this idea comes from and where was it popularised?
There’s a huge answer here:
From u/DougMcCrae