You mean besides Uriel all but saying as much to Harry--that Harry was granted the ability to use Soulfire by Uriel, with the further implication it's because he was able to turn Lash to the light side? Or that Bob tells him that's how Angels do their thing (i.e., it's the power of God and the Angels)? How Thorned Namshiel calls it "our power," i.e., that it's power belonging to Angels?
Yeah. Nothing at all to suggest such a thing, I don't know what I was thinking.
Uriel, Heaven's 'wet-works man', who is explicitly pointed out as being impressively deceitful in his own way, neglects to state something outright. Yep, that's real
solid evidence, there.
It's something Angels are known for doing. Obviously this means that only those who follow the same Power that those angels do can access this power.
Angels cast out of Heaven for rebellion have been barred from the use of this power. Because an entity capable of
creating a host of Angels and then banishing them couldn't possibly also cut them off from a source of power unless that power came from the entity itself.
If you're paying attention, you'll note that the second half of each of those was sarcasm.
There's also the write up in the book - it states Soulfire [...] follows an agenda "in line with Heaven".
This is what we call 'begging the question'.
Soulfire draws on the "fires of Creation"
Which is evidence of nothing more than that which is referred to as 'the fires of creation' could also be accurately referred to as 'soulfire'. It is irrelevant to the question of whether Soulfire properly has a Sponsor external to the soul of the user themself.