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It goes back much further. Two factions are at war however your faction has no idea they are under heavy attack.
Children of the Light vs Children of the darkness.
This is Biblical indeed.
Children of the Light are protectors / defenders in service of others, they do things to help others and get great gratification doing so.
Children of darkness only think of themselves and how they can use others to help themselves.
Thus their extreme desire to enslave and control us all.
When a planet ascends (the rapture) it either goes negative or positive. Earth went positive, that's what it means by "they lost".
They tried to trick us, manipulate and lie to us and control us so that we would go negative but they failed.
We humans have free will and with our free will we chose to go positive (good) now the negative entities are being removed so we can ascend.
There are plenty of planets that went negative like you see in star wars, planets controlled by dark forces. Quite literately hell on earth but the entities on those planets used free will and chose that dark path.