The slave trade and slavery itself are dealt with in post #12.
The issue here is simply the morality of it.
What then is the distinction between the OT and the NT in regards to slavery?
The OT along with classical Greek writings contains no clear-cut mechanisms for
abolition of slavery as the NT does. This is a key point.
The central teaching of Jesus as to ‘treating the neighbor as oneself," coupled with the changed hearts of those who came to believe in him, and a renewed understanding of the Seventh Commandment per James 5, would mean over time the eventual death of a system based on treating the slave as a "chattel" and not as a human being worth as much as his master.
Neither Jesus nor His immediate followers owned slaves; nor did Paul, Barnabas or Timothy. So both the example of Jesus and His great concern for the poor really proved to be a challenge for the early Christians. Many early Christian understood this distinction and saw themselves living in a different social-legal environment distinct from Rome and of the OT.
For example, the author of 1 Clem. 55:2 states Christ’s love working through humble spirits has motivated some Christians to sell themselves in order to have money to buy the freedom of others. This truly love working through Christ high admonition, "Take up your cross and follow me." or "whoever wants to save their life will
lose it, but whoever
loses their life for me will find it." This is love in action to his neighbor.
Charles Elliott (1792-1869), Methodist missionary to the Indians, abolitionist and sometime president of Iowa Wesleyan University, maintained that:
- (1) slaves could not help but hate their oppressors and therefore slavery promoted hate and murderous thoughts – directly contrary to Jesus’ teachings (e.g., Matt. 5:21-22);
- (2) slaveholders break up families and necessarily maltreat little children – one of the most heinous of sins according to Jesus (Matt. 18:2-6; cf. Rev. 18:21);
- (3) slavery keeps the blacks in ignorance, whereas the gospel message requires Christian education (Luke 11:52; John 5:39);
- (4) Christ – in Luke 4 – effectively incorporated into his teaching and expanded upon the Old Testament special year of Jubilee (when slaves were freed), such that he ‘established, in his public administrations, a foundation for the universal emancipation of slaves’; and, most important of all,
- (5) since Jesus redeemed everyone, there can be no justification for one person’s enslaving another:
- (6) All men are redeemed by the same blood of Christ; and therefore, this common and general redemption by the blood of Christ is at variance with slavery... The same great sacrifice has been made for the slave as for the master; and therefore, the soul of the slave is worth as much as the soul of the master.