On its own, humanity lives enslaved to a worldly system of excessive pleasure, greed, and selfish pride.
Jesus proclaimed freedom, the coming of the kingdom of God, in which such slavery would no longer exist. All forms of slavery that could not be eliminated through natural means would be eliminated as He sent His disciples out to announce this good news and bring about the kingdom, changing the nature of the world. To be effective at this work, the disciples learned to be channels through which the Spirit worked to change hearts, not just minds.
From the beginning, Christians followed this call in ways that overtook empires and changed society, altering the very fabric of Western civilization. When freeing slaves looked like healing people, ending slavery looked like establishing hospitals, advancing medicine. Reading and writing became ubiquitous as formal education was made widely available even up to university levels, and the institution of literal slavery itself was dismantled. All these are examples of the Spirit working through those who had more in order to help those with less.
Today, however, we have gone back to natural means for establishing God’s rule, relying on human capabilities. Through things like rationality, organization, and legalism, we have worked to change circumstances and behavior. This seems successful as we continue to free slaves, but falls short of both Jesus’ command and the early church’s example of ending slavery. Many of our efforts today reach only some of those who need to hear of God’s love, and so limit the degree to which the kingdom can advance.
Perhaps as Western society flourished as a largely Christian place, we became complacent to the spiritual needs around us. Perhaps we have allowed ourselves to feel good about freeing the occasional slave while leaving slavery itself intact. However, being a good steward of God’s grace means bringing reconciliation to society, not just individuals.
So, while we’re patting ourselves on the back for how many slaves we’ve freed, Jesus stands at the door, calling us out of lukewarmness with offers of His Spirit.