Mary did not doubt the announcement from Gabriel about giving birth as a virgin, but she did ask the question: How? She didn’t question God’s power or ability, but she wondered how He would accomplish the miraculous.
Gabriel’s response is rich with meaning: “The Holy Spirit will come upon you, and the power of the Most High will overshadow you.” Ponder that statement in light of other Scriptures:
The two natures of Jesus Christ form what theologians call the hypostatic union. That’s a big term but it simply means that Jesus is made up of undiminished Deity and perfect humanity. He became no less God when He became human. Mary did not give birth to both God and man. Jesus was not 50 percent human and 50 percent God. Rather, Mary gave birth to the God-man who was both fully God and fully man at the same time. Jesus was born of God so that He might be God with us, Immanuel. We read in Colossians 1:19 that, “God was pleased to have all His fullness dwell in Him.”
The Bible often equates Jesus with God, reinforcing this relationship. Genesis 1:1 tells us that God created the world, and Colossians 1:16 tells us that all things were created by Christ Jesus. So either we have two creators, or the God of Genesis 1:1 is also the God of Colossians 1:16. Jesus Christ is distinct from God the Father in His Person, yet equal with God in His Deity. He took on human flesh being born as a baby in a world of darkness. He came for the purpose of making the invisible God visible to us in history.
Jesus’ birth was a birth like no other because He is Deity like no other. Jesus came to earth as the Son of God so that we may know God and experience Him more fully.