Luke 1:34–37 (NKJV)
34 Then Mary said to the angel, “How can this be, since I do not know a man?” 35 And the angel answered and said to her, “The Holy Spirit will come upon you, and the power of the Highest will overshadow you; therefore, also, that Holy One who is to be born will be called the Son of God. 36 Now indeed, Elizabeth your relative has also conceived a son in her old age; and this is now the sixth month for her who was called barren. 37 For with God nothing will be impossible.”
There are many significant truths about God that were manifested at the birth of Christ and perhaps the most obvious fact is that God has the power to do the impossible. This truth should be something accepted at face value because it is inherent in the nature of God to do the supernatural. Yet from our perspective we have to be reminded of this fact.
In the case of Mary, God sent an angel to tell her that He would create life in her womb. God does not require the natural reproduction process of procreation to give life to a human being. Remember the first man was created from dust (Genesis 2:7) and the first woman was made from Adam’s rib (Genesis 2:21). So it should not be much of a surprise that God would create life by supernatural means. In fact in our text the Angel points to Mary’s cousin who is with child beyond her natural childbearing age.
Christmas should remind us that nothing is impossible with God, including granting eternal life. (See Matthew 19:16-26)