While Lizzie Deas is credited here, I'm not sure how much she actually contributed beyond the opening paragraph explaining the message of the legend "The Christmas Rose." The legend itself seems to be quite old. While it does involve the nativity scene, however, it does not appear in the Bible. Essentially, it's a Little Drummer Buy sort of message: it's the thought behind the gift that's really important. But rather than a kick-ass drum solo, in this tale the present is a Christmas Rose that sprouts from the tears of a maiden who is upset that she had no gift to give the baby Jesus. Cry and you'll be rewarded, I guess.
It's an fine story, though surprisingly has little connection to "Lo, How a Rose E'er Blooming" which is why I decided to read it in the first place. (Feist's rendition is one of my favourites.)