One of the particularities of the American Civil War in 1865 was that the Northern Abolitionists, who wanted to end slavery, pulled out their Bibles and denounced slavery as a sin that Christianity had done away with. I'm surprised that this verse hasn't been used to make the case, as it would seem to support it:
Galatians 5:1 said:
It was for freedom that Christ set us free; therefore keep standing firm and do not be subject again to a yoke of slavery.
Ironically, if you look at the context, Paul was talking about freedom from the law, which regulated slavery. Freedom from the Law's regulations meant that slave masters could treat them as harshly as they wanted, and "man-steal" as much as they wanted.
Meanwhile, the Southern slaveholders pulled out their Bibles and used the of passages admonishing slaves to submit to their masters as an okay for what they were doing.
Therefore, the Bible regulates slavery and makes extensive comments on how it should be done, but it makes no comment on the morality or immorality of slavery as an institution. This institution is as neutral as marriage in how the Bible treats it. It is neither moral or immoral; it simply is..
The only difference is that slavery in the OT/NT has been replaced with the modern practice of employment today. Employment was necessary for all who did not own their own lands or businesses. There were some freemen day laborers, similar to freelancers in the modern gig economy, who worked for denarii in others' fields, and there are others who agreed to become slaves for others for a period of years, like modern employees. The institution has improved in terms of human rights, but it's still there because not all of us can afford arable farmland. In fact, given that farms are so efficient few people need to work them, more of us are economic slaves than ever before.
What? Christian slave owners?
I mean, there are directions given in Paul's letters to "masters" in context of slaves. A master is a slave owner.
Ephesians 6:5-9 said:
5 Slaves, be obedient to those who are your [
a]masters according to the flesh, with fear and trembling, in the sincerity of your heart, as to Christ; 6 not by way of eye-service, as people-pleasers, but as slaves of Christ, doing the will of God from the heart. [...]
9 And masters, do the same things to them, and give up threatening, knowing that both their Master and yours is in heaven, and there is no partiality with Him.
Colossians 4:1 said:
Masters, grant your slaves justice and fairness, knowing that you also have a Master in heaven.
I'm also not sure where you're coming from with your "Paul condemns slavery in 1 Timothy" argument, because in 1 Timothy Paul says this:
1 Timothy 6:1-2 said:
All who are under the yoke as slaves are to regard their own masters as worthy of all honor so that the name of God and our doctrine will not be spoken against. 2 Those who have believers as their masters must not be disrespectful to them because they are brothers or sisters, but must serve them all the more, because those who partake of the benefit are believers and beloved. Teach and preach these principles.
This book literally says that some slaves have "believers as their masters". This means that Christian slave owners did exist in Paul's time.
Theft of labor (James 5) by definition means a slave master doesn't treat his slaves well. NT is very clear on this.
James 5 refers to the work of free laborers who were owed wages, as opposed to a slave who was paid no wages at all.
No, kidnapping is taking a person from point a to point b by force. The Bible text is clear. ἀνδραποδιστής means man-stealing.
How is man-stealing not taking a person from point a to b by force? Clearly one wouldn't steal a man and leave him where he was, would they? That would do nothing. You take him to somewhere where he can't escape easily and put him to work.
Keeping in mind that all mankind is already in slavery.
We are all spiritual slaves, either to righteousness or sin. Spiritual slavery is distinct from economic slavery. Probably economic slavery is a picture of the spiritual slavery, but the two are not one and the same.
It's interesting that marriage, which is a picture of Christ and the church, is placed alongside slavery, which is a picture of our spiritual condition in relationship to God, in both Colossians and Ephesians. At the end of the day, we are all slaves to God, or to our own sin. Our relationship to God, our spiritual condition, "owns" us - we are not free. We are God's property.
Non-responsive to slavery to righteousness is good in every sense
Uh, no. That is the depths of sin, if you are unresponsive to slavery to righteousness. That is evil.
It is fascinating. I have read a few ideas on the subject myself; I think ultimately the rapid growth of the early Church is miraculous, and I think it was connected to the stalwart faith and gracious behavior of Christians confronted with martyrdom. The theory you mention is very interesting and I haven’t seen it before.
I think that many things contributed to the rapid growth, for example, the parables mentioned by you, and the martyrdoms i mentioned in the previous paragraph, the Christians caring for the sick during the pandemics of the third century and thus acquiring an immunity that Pagans and others who avoided the sick lacked, the popularity of Christianity among women because of its prohibition of infanticide, which fathers could legally do in the Roman Empire, but Christians could not without being excommunicated, therefore, many women would convert and only marry Christian men, furthermore, Christian mothers in several cases influenced their children so that they eventually renounced Paganism and converted.
I would encourage you to read
The Darkening Age by Catherine Nixie. The early church was spread through violence as Christians destroyed pagan temples and forced secular philosophers into hiding. That is not to say that there weren't other factors, but that definitely was one. Christianity functioned as a revolution against the Roman authority and pantheon of false gods. People got tired of absolute rule and were looking for a better authority, and Christ was kind, loving, and his commandments made sense.
Christianity also spread quickly because it was true (500 in-person witnesses to the resurrection and the miracles of the Apostles were very convincing). Thanks to the Greeks, everyone was looking for truth and wisdom already, so what happens when real Truth shows up? It spreads like wildfire and people adopt it.
God chose the right moment for Christ's arrival and precisely arranged the historical forces to spread His Gospel rapidly to the ends of the Earth.