“…Christians of all times and places have professed that Christ himself is the center of our preaching, our gospel, and our theology. Christianity is Christ…Our first allegiance is not to a set of eternal truths, as in Buddhism or Platonism, but to a person who lived in history to save us and who lives eternally as our heavenly High Priest.”
Christianity is Christ. Every passage, every person, and every exploit from “Let there be light…” to “And night will be no more…” was either working toward this thirty-three-year window or pointing back to it. At least that is what the Apostle Paul believed when he penned “When the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons.”
The angel Gabriel’s announcement, in Luke 1:26-38, concerning the conception of the Christ has this same end in mind; namely, the baby to be born is the Christ promised from long ago, the Center of Things. The point of God’s announcement is not Mary, it’s not Christmas, but Christ. Packed into the announcement is God’s pronouncement that this child is the Christ as seen in 1) The timing of His birth, 2) The location of His birth, 3) The means of His birth, 4) The family tree of His birth, & 5) the method of His Conception
The Timing of His Birth
As provided for us in the passage preceding, there would be born before Him a forerunner who would “make ready for the Lord a people prepared” (vs. 17). So, when Gabriel visits Mary to inform her of God’s intentions it should be no surprise that we find God declaring His intentions “In the sixth month…” (vs 26). Given the prophetic fulfillment of Malachi 3 & 4 concerning this forerunner, believers can take confidence in the timing of Jesus birth.
The Location of His Birth
A red-flag should rise when we hear that God sent Gabriel to virgin in Nazareth (Luke 1:26). The Messiah was to be born in Bethlehem (Micah 5:2) and this young teenage girl was almost 100 miles north of God’s designated place of birth for the Christ. Of course, having Luke 2 we read how God moved the desires, intentions, & plans of Rome’s emperor and by His divine hand the Christ from Nazareth would be born exactly where God required. God Almighty moves the heart of the kings and turns it as He wills; He needs not the king’s approval or cooperation.
The Mean of His Birth
In spite of liberal theologian’s attempts to discredit the virgin-birth prophecy of Isaiah 7:14, Luke, Matthew, and Mary herself confirm that God’s intended meaning of Isaiah’s prophecy was that the impossibility of virgin birth would meet the Omnipotent King of Creation. “This took place to fulfill what the Lord had spoken by the prophet…” (Mt. 1:22). If God declared it would be, of course, it would come to be for who could “thwart his plans?”
The Family Tree of His Birth
Gabriel announces that the virgin-born boy would be “the Son of the Most High” and the offspring of “his father David.” This multi-layered proclamation assures the Christian that this Messiah would be both God and man. That Jesus’ family tree would be of divine origin and yet still retaining true humanity. He would need to be both “God-with-us” (Immanuel) and “us” so that “He might become a merciful and faithful high priest in service to God, to make propitiation for the sins of the people.” God’s announcement given through his messenger Gabriel confirms, both, Christ’s deity and humanity, permitting Christ to become both the Just and the Justifier.
The Method of His Conception
Luke 1 provides for us a trinitarian movement in the conception and incarnation of Jesus the Christ. Believers can take great confidence as they see the Father’s plan (vs. 26), the Spirit’s power (vs. 35), and the Son’s presence (vs. 32,35) all working in perfect harmony bringing us to “the fullness of time” (Gal. 4:4). Reminiscent of God’s creative majesty in Genesis 1, the Spirit of God overshadows the emptiness of Mary’s womb, much like He hovered over the emptiness of a formless world, and from the Father’s eternal plan, the Eternal Son takes on material being. “For nothing will be impossible with God” (Lk 1:37). From creation ex nihilo to conception in a virgin from Divine origin, nothing is too hard for God (Jeremiah 32:27).
God’s word to Mary, from Gabriel, is a repository of faith-strengthening truth that encouraged and emboldened both the original recipient, Mary, and generations of believers for 2000 years. May we feast upon God’s faithfulness and he strengthens our faith in His Truth, Jesus Christ.
 John Frame, Systematic Theology
 Genesis 1:3
 Revelation 22:5
 Galatians 4:4-5
 Hebrews 2:17