Yahweh and Jesus are two different entities, just saying (because of that thing of “2000y”)…
Also, some sources date from 6k years ago or more, as @DemonMonk says.
At least, but not less important, Lucifer and Satan are completely different entities too. Satan is not more (for bible and Torah) than the “adversary”, “rival”, and it’s not attributed to Lucifer at all… Instead, Satan (the bible concept, or the “Torah” one) comes from Persian’s beliefs. It was adapted from there, and it’s not related to Lucifer but to an “adversary of humanity” (not until apocalypse or the later church reviews that are only “Christianism propaganda”).
LaVey works on another concept of Satan, but that isn’t in discussion here. But even LaVey’s one isn’t Lucifer.
That said I believe you, @Kulina8, misunderstood all the “comparison” thing. Also, I believe that “comparison” is completely out of purpose since Lucifer isn’t the adversary but Satan is (again, bible concept, not mine). So, in that case, maybe the best “Ying” for “Yahweh Yang” side is Satan (again, in your comparison).
Lucifer is only a good being that was exhorted from heaven just because he was too good. All the fonts say (including Bible) that Lucifer was an angel of pure light, closest to the Yahweh (in the Torah mentioned as the creator of all), closer than Metatron! And other angels wanted to be more like him, so Yahweh exhorted him from heaven.
I’m using this Torah passage just to mention that not even the original text quotes Lucifer as a bad being.
Also, Apocalypse texts mention Lucifer as Satan, but that is on Church. In Torah, the inferno doesn’t exist. Satan isn’t a “being” but is more like every little thing that can detract people from “Yahweh path”.
So don’t need to be so upset. Lucifer is a great guy and even the Jews have no reason to doubt it. The great “sin” of him is to be too good. And even the Torah says that.
What church actually says about Lucifer is only propaganda. And all religions have that. Just let they run along with this. Christians aren’t the majority at all…