Are you certain that the void (i.e., blank non-entity, perfect emptiness) has to have come from something or from somewhere? Why?
I have to leave but I really want to hear the answer!
I think you and certainly Cato1 misconstrue the philosophical and theological notion of the void.
The void is not 'perfect emptiness' since 'emptiness' implies extent
without content. The void simply isn't, therefore it doesn't 'come from something or from somewhere' because it isn't.
Theology is the one place where ordinary language and concepts collapse into complete irrelevancy in a more complete failure than in discussing quantum mechanics (where they don't do very well either).
Outside of creation (I don't want to use 'before' since time, as well as space are created), there is not God and the Void, but only the Uncreated God. 'EgO eimi ho On' (using o for omicron and O for omega and an h for the 'rough breathing') God replies from the burning bush when asked His name. (As an Orthodox Christian I regard the Septuigent, Greek Old Testament as authoritative, as did, evidently, the authors of the New Testament). In English, roughly "I am The Existing One" (or better "I am The Being" but with 'being' as a part of the verb to be rather than the English noun). Only God has absolute, uncontingent, unconditioned existence. As a guard against attaching to Him our finite conception of existence, some of the Church Fathers said things like "It is not strictly correct to say that God exists. Not that He lacks existence,
but that his supraexistential being is beyond existence." (from Dionysius
the Areopagites' The Names of God), or even "I believe in God, God does not exist." (I forget which of the Cappadocian Fathers).
All binary distinctions, being vs. non-being, fullness vs. emptiness, unity vs. multiplicity, even transcendence vs. immanence, are created. God is Uncreated.
(As an aside, I would note for Orthodox and Latin Christians creation ex nihilo is a Biblical doctrine, while for protestants it isn't: the only Scriptural testimony for the doctrine occurs in 2nd Macabbees--the widow Solomonia in exhorting her sons to accept martyrdom rather than abandon Judaism for paganism, testifies 'He created the world from nothing".)
BTW: Is the snark a boojum?