I had edited my original response, but the dreaded 20 minute edit window closed on me. So, here it is:My bad. Catholics can react out of seemingly perpetual defense of the faith, and we get weary and weak. I did not mean to imply such. Is not God eternal and outside of time? Are not all things present to Him at once? Compare the idea of eternal plans to Jesus’ parable of the vineyard and the owner’s son (
Luke 20:9-19). If even the human property owner had contingency plans, how much more does our Lord have them? If He does not have an eternal plan, does that not make Him a random God?However, Jesus revealed the perpetual virginity as an irreplaceable part of the Gospel truth. He taught us to seek and follow the truth. He gave a son (John) to Mary as He was dying on the cross, so that she would not be alone (
John 19:26-27 - compare this with
Luke 7:11, where He restored a widow’s only son to her). The virgin birth was not only the fulfillment of prophecy - Mary’s perpetual virginity was required to validate it. The only physical proof of Jesus’ virgin birth was if Mary
remained ever virgin! If she would have had other children, the scoffers would have had even more evidence to accuse Jesus. First, consider that they are not supposed, but rather real. They exist. And, lest we forget, we have the Gospel of Luke, though which we know of God’s plan by Divine revelation. As a matter of fact, the entire Gospel of Luke is the product of the Apostolic Tradition, since Luke witnessed none of it. He went to sources that were not always Apostolic (Mary) for much of his Gospel. [Yes! But, you realize that each of these is a work

However, it is faith, acting through love, which stands us in good stead before our Lord (**Hebrews 10:24]/B]). That is the essence of Christianity - faith, hope and love, but the greatest is love! Greater than faith? Yes, says Jesus and Saint Paul (
John 13:34-35 and
1 Corinthians 13:13). Well, getting back to God’s eternal plan for salvation, Mary was a crucial and required part of that plan. Her assent to Gabriel was absolutely needed so that we would ever see the Messiah in the flesh. Since all of salvation history is a seamless garment, Mary’s virginity remains part of it. Once we tear it out, the garment begins to unravel. Even reformer Jean Calvin said that those who doubted Mary’s perpetual virginity were “pigheaded”! And, as difficult as it is for us to believe in perpetual virginity, how much more difficult is belief in a virgin birth? The Holy Spirt, able to conceive Jesus in a virgin womb, certainly had the power to protect that womb for all time. We all know a maiden aunt. If that perpetual virginity can occur in this sex-soaked culture, how much more likely was it to Mary? Especially after a personal visit from Gabriel.
Many Catholic converts (Marcus Grodi, Mark Shea and others) tell us that Mary looks so much larger from outside the Church than from within. And, so it is. Mary was not just a readily available utensil, because God could raise up a savior from stones! But, He
chose Mary.
Christ’s peace be with you.