John Wright emphasizes the significance of the Incarnation of Christ, explaining how it is foundational to the Christian faith. He reflects on the pre-incarnate manifestations of Christ in the Old Testament, such as the angel of the Lord appearing to figures like Hagar, Abraham, and Jacob, illustrating God's continuous presence and interest in humanity. Wright highlights the mystery of godliness as expressed in 1 Timothy 3:16, affirming that God was manifest in the flesh through Jesus Christ. He connects Old Testament prophecies to their fulfillment in the New Testament, particularly focusing on the virgin birth and the divine nature of Christ. The sermon concludes with a call to recognize the profound mystery of God becoming man and the implications for believers today.