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25 Nov 2015 Middle East - Africa News Comments (1)

LIVE: Pope Francis arrives in Kenya - Watch

Watch a Live coverage of the Pope's arrival in Nairobi (Kenya) at the start of his papal visit to Africa

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24 Dec 2014 Q&A No comments

May a couple who marry in the Church, divorce, and later reconcile resume marital relations?

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09 Nov 2014 Q&A No comments

Is there a difference between a presider and a celebrant?

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23 Sep 2015 News USA No comments

Previewing the Pope at the United Nations: a call to abandon no one

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02 Sep 2016 Uncategorized No comments

Archbishop of Canterbury to join Pope Francis in marking 30 years since Assisi

Religious leaders will participate in a three-day event celebrating the first World Day of Prayer The Archbishop of Canterbury, Justin Welby, will join Pope Fr…

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21 Oct 2015 News Vatican No comments

Sir James MacMillan to compose work for Fátima anniversary

The celebration in 2017 will be attended by Pope Francis Composer Sir James MacMillan has been commissioned by the Shrine of Fátima to write a work for the s…

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31 May 2016 USA Vatican No comments

Pope appoints pastor as new auxiliary bishop for Philadelphia Archdiocese

Mgr Edward Deliman's appointment was announced by the apostolic nuncio to the United States Pope Francis has named Mgr Edward Deliman, who is a priest of the P…

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17 Dec 2015 News USA No comments

A combined Plea of Intervention for Persecuted Christians

On Tuesday, December 15th, the Canadian Rabbinic Caucus and the Canadian Conference of Catholic Bishops had a joint meeting and have sent an appeal to Stéphane …

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20 Oct 2015 News Vatican No comments

Why the Synod of Bishops is more than Rock’em Sock’em Robots

When you talk to people taking part in the 2015 Synod of Bishops on the family and ask where things stand, one observation you’ll often hear is that public impr…

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Without the Immaculate Conception, would Jesus have inherited his Mother’s sinful nature?

Full Question

How come, when you defend the Immaculate Conception in your seminars and articles, you never use the strongest argument? Mary had to have been immaculate (and thus sinless) because it was from her that Jesus took his flesh and his human nature. If Mary had not been immaculate, and had been subject to the physical and spiritual corruption of sin, Jesus would have inherited that corruption also.


The reason we don’t use that argument is precisely that it’s not a good one. Your line of reasoning is commonly called the “argument of necessity,” meaning that God needed to make Mary immaculate for the reason you mentioned. The problem is that God didn’t need to make Mary immaculate in order to carry out his plan for the Incarnation of Jesus. He could just as easily have allowed Mary to be conceived in original sin and still preserved Jesus from becoming contaminated by the corruption of her sinful nature (which, by the way, is what Protestantism maintains was the case).

The way to prove this is to use your argument against you. Since your premise rests on the thesis that if Mary were not immaculate she would have passed along the taint of sin to Jesus, it would follow that Mary’s mother, Anne, would have had to have been immaculate in order not to pass on her sinful nature to Mary. And Anne’s mother would have to have been sinless, and her mother would have had to have been sinless, and so on.

You can see why this argument won’t work: It sets up an unworkable, not to mention unbiblical, regression of “immaculate conceptions” from Mary back to Eve (who, as a type of Mary in the Old Testament, was immaculately created by God, free of any stain of sin or corruption [Gn 1:31]). Rather, in view of the merits of Christ’s once-for-all redemptive work on the cross, God saved Mary from all sin (Lk 1:47) even though she was conceived and gestated for nine months in the womb of a woman, Anne, who was subject to original sin (and most probably actual sin).

Don’t use the easily refutable argument of necessity; the argument of fittingness is much better. It was fitting that God willed that Mary was conceived free from all sin, since she was chosen to be the Ark of the New Covenant, the mother of the Second Person of the Blessed Trinity, the incarnate Word of God. The Father didn’t have to do it that way, but it was fitting that he did. For a more detailed discussion of the doctrine of the Immaculate Conception see Bishop Ullathorne, The Immaculate Conception of the Mother of God (Westminster, MD: Christian Classics, 1988 ed.) and Patrick Madrid, “Ark of the New Covenant” (This Rock, December 1991).


  1. Jacob Reply

    I’ve considered this argument and one thing that I’ve thought of in support of it is that because God chose to save mankind from sin through the Incarnation of His Son, it is this that necessitates a mother, if He is, truly, to be one of us. Jesus could, theoretically, have been conceived immaculately, but it seems to me that would mean He would have to redeem Himself. However, we see on the Cross that He refused to save Himself; He came not to save Himself, but to save us. He wouldn’t preserve Himself from sin but He could redeem His mother and thus be Himself conceived sinless. My two cents anyways!

  2. Melanie Reply

    As a protestant, I was always taught that the sinful nature was passed through the paternal line (as is taught in the Old Testament). Since Jesus had no human father, we can deduce that Mary was made sufficient during and for Jesus’ conception to pass on the physical nature of Jesus (his body was equally as human as Adam’s was) and his perfect human nature (the same as Adam had before he fell into sin). Super simple.

    The perfect human nature is able to be tempted but free to choose NOT to sin, to resist and overcome temptation. On the other hand, the imperfect sinful nature has a tendency to sin, to actually tempt itself once it becomes infected by having sinned. Those with a human father are thus born with the tendency/inclination to sin, not just the ability to do so. Got it?

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