What does it mean that Christ led captivity captive?

In the context of Ephesians 4:8, 'leading captivity captive' refers to Christ’s triumphant victory over sin, law, death, and Satan. This is illustrated as a Roman triumph where the victorious king leads his defeated foes in chains. Christ has not only defeated these enemies but has also liberated His people from their dominion. For example, sin can no longer enslave believers, as they are now under grace rather than the law (Romans 6:14). Moreover, the defeat of Satan means that he cannot bring accusations against God's elect, as Christ has already paid the penalty for their sins. Thus, this phrase encapsulates the success of Christ's redemptive work and the freedom that believers now experience through faith in Him.