User blog comment:Kajune/Lucifer, first son?/@comment-27460953-20160407212805

I believe that what Amara meant by "God's first son" was that he put Lucifer first. Lucifer was his favorite son, and therefore he put him before the rest of his creation...until humanity that is. I don't think there is any retcon, or think the the writers screwed up. I think it was just a figure of speech expressing that Lucifer was put first by God.