Galatians 4:1-7. "But when the fullness of the time came..." The sermon explores the mystery and motive behind God's incarnation, emphasizing that the arrival of Jesus was not merely a historical event but a purposeful act of redemption. Drawing on Galatians 4, the message highlights that believers, previously held captive by the law, are now adopted as sons through the gift of the Holy Spirit, allowing them to call God "Abba." It underscores that Jesus' birth was a divine initiative, not a human effort, and that His coming fulfilled Old Testament prophecies while offering a path to freedom from sin and a loving relationship with God, ultimately positioning believers as heirs through faith.