The perpetual virginity of Mary is not so surprising when we reflect that Mary is the Mother of God. Christ is the true and natural Son of God. It is not fitting that he should have any other natural father. It was not fitting that God should share His parenthood with a man. Christ is also the Word of God, He proceeds from His Father without corruption. It was fitting that He should proceed from His Mother without corrupting her virginity. He came to take away the sins of men. But if He had been conceived of Mary by a human father, He Himself would have been subject to original sin. It was not fitting that He should be subject to the sin which He came to destroy. He came so that the men might be reborn spiritually of the Holy Spirit. It was, therefore, fitting that He Himself should be conceived by the Holy Spirit. He came to restore the integrity of human nature. It was not fitting that He should destroy the integrity of His Mother. Lastly, it is He Who has commanded us to honour our fathers and mothers. It was fitting that He should not lessen the honour due to His Mother by destroying her virginity in His birth.