I'm always amused when a non-Catholic with issues about the "errors" of the Catholic Faith tries to prove his claims by quoting Catholic documents.
Here are some refs from the RCC catechism which talk about Mary being able to provide salvation to us.
"Taken up to heaven she (Mary) did not lay aside this saving office but by her manifold intercession continues to bring us the gifts of eternal salvation..." Pg. 252, #969
Go back to page 252, #969, dan. You will notice that there is a footnote, specifically number 512. The document this footnote quotes from is from the 2nd Vatican Council,
Lumen Gentium, the Dogmatic Constitution on the Church, dated 21 November 1964, number 62.
Okay, so we go to our copy of Vatican II documents, and we look up the quote from the Catechism which you have provided for us above. Lo and behold! What you have given us above appears to be only a PARTIAL QUOTE from Vatican II!!!
And what does the ENTIRE quote say??? Why, it says this:
"This motherhood of Mary in the order of grace continues
uninterruptedly from the consent which she loyally gave at the
Annunciation and which she sustained without wavering beneath the cross,
until the eternal fulfillment of all the elect. Taken up to heaven she
did not lay aside this saving office but by her manifold intercession
continues to bring us the gifts of eternal salvation. By her maternal
charity, she cares for the brethren of her Son, who still journey on
earth surrounded by dangers and difficulties, until they are led into
their blessed home. Therefore the Blessed Virgin is invoked in the Church
under the titles of Advocate, Helper, Benefactress, and Mediatrix.
This, however, is so understood that it neither takes away anything from nor adds anything to the dignity and efficacy of Christ the one
Mediator.
No creature could ever be counted along with the Incarnate Word and
Redeemer; but just as the priesthood of Christ is shared in various ways both by his ministers and the faithful, and as the one goodness of God is radiated in different ways among his creatures, so also the unique
mediation of the Redeemer does not exclude but rather gives rise to a
manifold cooperation which is but a sharing in this one source.
The Church does not hesitate to profess
this subordinate role of Mary,
which it constantly experiences and recommends to the heartfelt attention
of the faithful, so that encouraged by this maternal help they may the
more closely adhere to the Mediator and Redeemer."
(Emphasis mine.)
In other words, your quote,
taken in context, says exactly the opposite of what you said it says.
Then we have this:
"Being obedient she (Mary) became the cause of salvation for herself and for the whole human race." Pg. 125, #494
This is also a partial quote, from Irenaeus of Lyons, in his treatise
Adversus haereses ("Against Heresies"), Book III, Chapter 22, Part 4, written between 180 and 199 AD. The complete quote:
"In accordance with this design,
Mary the Virgin is found obedient, saying, "Behold the handmaid of the Lord; be it unto me according to thy word."
But Eve was disobedient; for she did not obey when as yet she was a virgin. And even as she, having indeed a husband, Adam, but being nevertheless as yet a virgin (for in Paradise "they were both naked, and were not ashamed," inasmuch as they, having been created a short time previously, had no understanding of the procreation of children: for it was necessary that they should first come to adult age, and then multiply from that time onward),
having become disobedient, was made the cause of death, both to herself and to the entire human race; so also did Mary, having a man betrothed [to her], and being nevertheless a virgin,
by yielding obedience, become the cause of salvation, both to herself and the whole human race. And on this account does the law term a woman betrothed to a man, the wife of him who had betrothed her, although she was as yet a virgin; thus indicating the back-reference from Mary to Eve, because what is joined together could not otherwise be put asunder than by inversion of the process by which these bonds of union had arisen; so that the former ties be cancelled by the latter, that the latter may set the former again at liberty. And it has, in fact, happened that the first compact looses from the second tie, but that the second tie takes the position of the first which has been cancelled. For this reason did the Lord declare that the first should in truth be last, and the last first. And the prophet, too, indicates the same, saying, "instead of fathers, children have been born unto thee." For the Lord, having been born "the First-begotten of the dead," and receiving into His bosom the ancient fathers, has regenerated them into the life of God, He having been made Himself the beginning of those that live, as Adam became the beginning of those who die. Wherefore also Luke, commencing the genealogy with the Lord, carried it back to Adam, indicating that it was He who regenerated them into the Gospel of life, and not they Him.
And thus also it was that the knot of Eve's disobedience was loosed by the obedience of Mary. For what the virgin Eve had bound fast through unbelief, this did the virgin Mary set free through faith."
(Again, emphasis mine.)
In other words, Eve brought condemnation on mankind through her disobediance, whereas Mary, through her obediance
in bearing the Savior of mankind into the world, brought us the means of salvation: Jesus Christ Himself. If she hadn't obeyed God by giving birth to Jesus, we wouldn't have a Savior.
Where is the heterodox doctrine in all of this??? I don't see any.
Make sure you know what you're quoting, where it came from, and what it says, dan, before you start using it to back up anti-Catholic statements.
