Service is serving--sometimes voluntarily, sometime involuntarily. In service one is enslaved to someone or something--sometimes voluntarily, sometimes involuntarily. Slavery is not all bad. For instance, Paul, inspired by the Spirit, said, “being then made free from sin, ye became the servants of righteousness” (Romans 6:18). One may be freed from one slavery, but he will inevitably be brought under the control of another slavery. The black people who were made free by The Emancipation Proclamation, were not free to do as they pleased. They ceased being mere chattel for their masters; but they were brought under the laws of the land. If one is free from righteousness, he is the slave of sin; if he is freed from sin, he becomes the servant of God. Everyone serves someone.