Can you help me answer these Immaculate Conception Questions?

Hi, I recently posted an explanation about the Immaculate Conception on my Facebook page. I have some friends who asked me a few questions about it and I’m not quite sure of the answers. One asked, “if Christ can save Mary from original sin in this way, why not save EVERYONE in this way, or at least those who will in life go on to be completely sanctified?” And the other wanted Bible references for the I.C. Any help??

The following links should assist you in better understanding Mary’s perpetual virginity. If you have any further questions or concerns that are not answered by these links, please contact Catholic Answers directly.
Recommended Reading:

*]Doesn’t Scripture imply that Mary had children other than Jesus?
*] Did Jesus have brothers?
*] Perpetual Virginity: Why is this important?
*] Mary: Ever Virgin
*]How do we know Mary was a perpetual virgin?
*] Why should any doctrine not explicitly referred to in the Bible, be listened to?
*] How do you respond to “Everything you need to know is in the Bible”?
*] How can we know a doctrine is true if it’s not in the Bible?
*] How do we know that the Protoevangelium of James is credible?
*] Does Church Tradition exist only to interpret Scripture?
*] Non-Canonical Writings…
*] Oral Traditions not found in the Bible
*]Immaculate Conception and Assumption

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