[LeonardFMason]

Where did the singularity come from? Where did this single point of infinite density come from? What is it’s origin?

[Benito Cereno]

So is your point that unanswered or unanswerable questions is evidence of creation, of God, of the fallibility of human scientists? Science e isn’t just knowing but it’s always asking, something many of my fellow Christians stop doing in the false belief that faith eliminates doubt or questions.

[GunRunner]

I think "come from" and "origin" might be superflous when you're talking about a region that exists outside of space and time as we understand them. Without time or space, beginning or end, what's the point of asking about an origin?

Lemaitre's writings are freely available; maybe you can start there.