What does Romans 8:15 mean?

Romans 8:15 draws a contrast between two ways of relating to God: one marked by fear and slavery, the other by intimacy and belonging. Paul tells his readers that they did not receive "the spirit of bondage again to fear" — meaning they are not living under a system where God is a harsh master to be dreaded, and obedience is driven by terror of punishment. Instead, they received "the Spirit of adoption," the Holy Spirit who brings them into God's family as beloved children, giving them the confidence and freedom to cry out to God with the intimate address "Abba, Father."

This verse comes from Paul's letter to the Christians in Rome, written around AD 57, to a congregation made up of both Jewish and Gentile believers. Chapter 8 sits at the heart of Paul's argument about life in the Spirit versus life under the law and sin. Earlier in Romans, Paul has described the futility of trying to earn righteousness through law-keeping and the bondage that sin and guilt produce. Here he pivots to describe what the Spirit accomplishes: believers are no longer slaves cowering before a demanding law, but sons and daughters welcomed into God's household. The word "Abba" is Aramaic, the intimate term a child would use for a father, roughly equivalent to "Papa" or "Dad." Paul uses it alongside its Greek translation "Father" likely because it was already a cherished phrase used in early Christian prayer, possibly echoing Jesus's own use of the word in Gethsemane (Mark 14:36).