This passage is the zenith of the letter. Even though we were slaves to sin, God, through the redemptive work of Christ, adopted us as his children and gave us the spirit that calls out, abba Father! God didn’t just send Jesus to forgive us of our sins and give us a fresh start. He saved us from the slavery and adopted us into his family as children, with all the rights of sonship. What does it mean to be adopted as his children? How do we live as his children? And how is understanding and experiencing this father-child relationship the key to our life transformation?