In this exposition of Romans 8:15-17, the preacher explores the believer's deliverance from the spirit of slavery and fear into the glorious Spirit of adoption as sons of God. Through the indwelling Holy Spirit, we cry "Abba, Father!" with the same intimate confidence as Christ, are assured of our sonship, and become joint heirs with Christ - sharing in redemption, conformity to the Son, and an imperishable inheritance that culminates in the new heavens and the new earth. The message carefully balances the privileges of adoption with the responsibilities of sonship, while warning against false assurance and warns true believers to live in joyful obedience and reverence. It culminates in the ultimate hope: dwelling forever in unbroken communion with God Himself.