The belief that Jesus Christ was born of a pure Virgin is entirely in
keeping with the belief in His pre-existence as God. There is no space
to set forth here the weighty reasons for the importance of this
belief. It is sufficient to say that it is inseparably interwoven with
the whole Christian conception of His Incarnation, namely, that in
Jesus Christ we have perfect God and perfect Man. The Virgin-Birth
keeps the balance even between His Deity and His humanity. This
article of the Creed, which is based on the direct statement of two of
the four Gospels, is therefore most helpful in enabling us to
understand that in Jesus Christ we behold Divine and human nature
joined in perfect unison, He being "God of the substance (essential
nature) of the Father, begotten before the worlds, and Man of the
substance (essential nature) of His Mother, born in the world".