It works surprisingly well.
You get a complete narrative, as if each story is the missing half of the other one. Or each one explains the holes in the other one. (The Odin-Loki relationship and the Yahweh-Lucifer relationship have some great parallels, but they're different angles on the story, as it were. You still get the saga of a violent breakup and a war in heaven, and neither one really has a good explanation for the motives behind any of it, but somehow, when I jam them together in my head, they click.)
And this, of course, wouldn't fit into any of my working continuities, and I've already got two different Norse things going, and two hard riffs on Judeochristian myth. So really, I need another one.
I am in so much fucking trouble.
...I wonder if I can file the serial numbers off enough to get this into Dust. Since it's already going all Old Testament on me. Which is fun, for an SF novel.
Yup, that one might be starting to gel. Since truepenny gave me this today:
For behold, the Lord comes forth from His place, and He shall descend and tread upon the high places of the earth. And the mountains shall melt under Him, and the valleys shall split-as wax before fire, as water poured down a steep place. All this is because of the transgression of Jacob, and because of the sins of the house of Israel. Who is the cause of the transgression of Jacob? Is it not Samaria? And who causes the high places of Judah? Is it not Jerusalem?
And I will make Samaria into a heap in the field, into a place for planting vineyards; and I will cast its stones down into the valley, and its foundations I will uncover. And all its graven images shall be crushed, and all its hires shall be burnt with fire, and all its idols I will lay waste; for from the hire of a harlot it gathered, and to the hire of a harlot shall they return.
Concerning this I will lament and wail; I will go mad and be naked; I will make a wailing as jackals, and mourning as ostriches. For she is mortally ill from her wounds, for it has come up to Judah; it has reached the gate of My people up to Jerusalem. Do not declare it in Gath, do not weep; in the houses of Aphrah, wallow in the dust.
I can feel the kinds of inklings that tell me that the worldbuilding is coming together, and the book is starting to make sense.
But first, I have to write New Amsterdam.