Now here is something that is a very interesting question and I think Judaism re-enforces the Eastern Orthodox perspective on this issue, and disagrees with the Catholic view of immaculate conception... (I'm going to be VERY basic on this answer it goes MUCH deeper) Orthodox original sin is something that has been under debate, and there are some variations between (mostly in name) between Oriental Orthodox and Eastern Orthodox.
1) The Eastern Orthodox church believes that Mary (the Theotokos) had every capability of sin and that she was born with Original sin and capable of death (some call it ancestor sin http://www.east2west.org/doctrine.htm#Sin)
. However, she resisted the "stain of sin". (This will agree with the Jewish teaching in #3) (http://en.wikipedia.org/wiki/Eastern_Orthodox_Christian_theology#Original_sin
2) The Roman Catholic church teaches a heresy that she was born immaculately. They did this to address the issue that Mary would transfer original sin to Our Lord unless she was immaculately conceived. (This heresy came through the lack of understanding of the Jewish teaching of #3)
3) Heavy Orthodox Jews who hold total tradition ("you were born in utter sin!!!!" John 9:34 to the man born blind), believe that ALL men were born in sin. HOWEVER, they believe that the sin is transferred through the male seed. VERY INTERESTING!
SO basically if we root back to Orthodox Judaism - Mary was born in "utter sin" since she has a full lineage to David and was born from real human conception through intercourse.
But Jesus Christ our Lord and savior was NOT born in "utter sin", however, still of a human.
He was NOT born through a Male seed of typical conception (sorry no intercourse for you Mormon readers)! Thus, through an Orthodox Jew logic, the original sin never transferred since Jesus was not subject to a male seed from the fallen Adam!
This way the humanity of Mary was passed down to God who became flesh, but did NOT transfer the Original sin (so Jesus was indeed sinless but 100% man, and 100% God).
This is something that I feel the Roman Catholic church never understood when they came up with the heretical teaching of immaculate conception of Mary. They tried to make something convenient to their church teaching which somebody in ignorance to Judaism would, when all they had to do is root back to Jewish teaching of original sin.
Though I have not heard an Eastern Orthodox Christian explain it this way (I learned the original sin transferring from a male seed from an Orthodox Jew) I find this COMPLETELY amazing. I
Kind of neat! It kind of gave me chills when I heard that Orthodox Jewish Rabbi explain the male seed thing. Made me sort of point to the RC church and say "Ah Ha! That heresy is not needed to complete the result that you were trying to accomplish!".
Anyway, so to conclude, we absolutely need a savior that was neither born in sin nor had the stain of sin.
The Theotokos was capable of sins, but completely resisted sins, though she was born with complete "utter" original sin.
Our Lord and Savior Jesus Christ was neither born in "utter sin (original sin)", nor had the stain of sin, but had the capabilities of sin (as a human), but completely resisted them.
Please, do not preach your jueo-Christain-whatever theories in the Faith Issues forum. You know well that it's not a place fr that.
20 days of warning - Michał Kalina.