I think you misunderstood my question. A few posts back you said something to the effect that if Mary had been born into original sin then Jesus would have been born into sin.
My question was then, how was Mary not born into sin, where her parents sinless? You said it was a mystery to you.
Then I asked obviously not very clearly :) that if God could mysteriously cause Mary to be born without original sin then why couldn’t God just have allowed Jesus to be mysteriously born without original sin even though Mary was born into original sin.
Wow it is late and I have no idea if my questions are coming across coherently.
Probably. Its late for me too and it was 40 years ago that I decided against entering the Seminary. I'm not as conversant on a lot of this as I once was and should still be. Keep asking until you get what you want (it works for my wife and grand kids).