-A8
I don't see "he" in that same verse as Christ. The Septuagint doesn't even say "he" but "you." And it says "watch" (as in "guard"), not bruise or crush.
You are correct (re:#532), there was no "seed" (i.e. sperma), which is why I am wondering why Luke uses the same term for conception as he does for Elizabeth (who did conceive carnally), while John disctintly uses the word "beget."
My point was that the Incarnation was not a "natural" pregnancy, nor can it be thought as "natural" conception lest it be distorted into one, which would lead to a distorted and inconsistent conclusion that Mary gave birth "naturally" (vaginally).
The earliest documents showing that the Church believed in Virginal Birth (i.e. the birth canal was closed, the hymen was preserved) dates to St. Justin Martyr (mid 2nd century). That doesn't mean that it is the earliest.