Well Mary then wouldn't have been a virgin, would she...
I dont know exactly where it comes from, you are right that there is no scripture explaining it, but it is beautiful. This one I choose to accept without analysis. Sola scriptura people wont, and I find that sad.
I suspect if you actually believed that God was the author of the scriptures, like we do, you wouldn't be so quick to accept every wind of doctrine that comes down the unbiblical pike...
Well Mary then wouldn't have been a virgin, would she...
I think you misread what he/she wrote. The statement wasn't that Mary conceived Jesus in the usual method, but that Mary was conceived by her parents in the usual method.
It is original sin which causes us to sin, so without that Mary was able to lead a sinless life.
No, it is not in the bible. But neither is the concept of sola scriptura.
Man can only live 'by every word that comes from the mouth of God.' Not every one of those words is in the bible. Some were never written, but were remembered and passed down. If you do not accept that there could be some traditions that are from God but extra-biblical, then you are not really following God's teaching.
What those traditions are is debatable, but the fact that not 'every word' is in the bible is not.
Love,
O2