The sermon centers on Galatians 4:4–7, revealing that in the fullness of time, God sovereignly sent His Son—eternally divine yet born of a woman and under the law—to redeem humanity from the bondage of sin and the condemnation of the law. This divine-human person of Christ, fully God and fully man, fulfilled God's eternal plan by living a perfect life, bearing the curse of the law, and securing salvation through His death and resurrection. As a result, believers are not only freed from slavery but adopted as sons, receiving the Holy Spirit who testifies in their hearts with the intimate cry of 'Abba, Father,' affirming their new identity. The passage emphasizes that this sonship brings not only a new relationship with God but also a new status as heirs of eternal inheritance, all by grace, not by works. The sermon calls the church to live in gratitude, joy, and obedience, remembering their dignity as children of God and their calling to walk in the light of their spiritual rebirth.
