The apostle Paul uses the issue of slavery to simply illustrate and demonstrate how sometimes people can be in bondage to sin, and then how we need to be in servitude to God. When you talk about slavery, the only image many of us have of slavery is antebellum slavery in the South, Uncle Tom’s cabin. But, that’s not really the historical backdrop against which Paul is writing. In the Roman Empire there were millions of slaves, and we would call these people indentured servants, bond slaves, people who were often so close to the family members we have many historical records of a slave literally being adopted into a family and becoming the legal heir of the leaders of that family. Paul said you used to be slaves to sin, now you are slaves to God.