It is significant that slave traders, most often were "devout" Christians that used the book of Philemon as proof that they were within their Biblical rights to force slaves to return to their masters.
However, I still agree that at its core teaching, the NT is vehemently anti-slavery; but this is NOT explicit. That is, there is no "proof-text" to abolish slavery.
This is an important point - if the NT had been written by some modern Christians would begin with a statement of human rights (I am not opposed to such) and a bold statement about abolishing slavery. Paul took a different approach. He made no attempt to reform the Roman society but only to create God's ideal within the Christian church.
Thus, within the Christian community we have the following ideals:
- Gal 3:26-29 - You are all sons of God through faith in Christ Jesus. For all of you who were baptized into Christ have clothed yourselves with Christ. There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus. And if you belong to Christ, then you are Abraham’s seed and heirs according to the promise.
- John 8:32, 34-36, “…the truth will set you free…whoever sins is a slave to sin…so if the Son sets you free you are free indeed.”
- Gal 5:13, 14, “You, my brothers and sisters, were called to be free. But do not use our freedom to indulge the flesh; rather, serve one another humbly in love. For the entire law is fulfilled in keeping this one command: ‘Love your neighbor as yourself.’”
- Gal 5:1, “It is for freedom that Christ has set us free. Stand firm, then, and do not let yourselves be burdened again by a yoke of slavery.”
- Gal 3:22, “But Scripture has locked up everything under the control of sin, so that what was promised, being given through faith in Jesus Christ, might be given to those who believe.”
- Ps 118:5, “Out of my distress I called on the LORD; the LORD answered me and set me free.”
- Ps 119:45, “I will walk about in freedom, for I have sought out your precepts.”
As Christians read this sort of Biblical material and sat together each week in church, slavery became more and more difficult to reconcile with a genuine practice of the Christ-like life. It was this that ultimately motivated started the great abolitionists to initiate the social reforms to eliminate slavery.
Back to Onesimus: While it is true that Paul sent Onesimus back to his slave owner, we also read that in Col 4:9 Onesimus appears to be be a Gospel work with Paul and others - Philemon had obviously freed his slave!! Therefore, I regard Col 4:9 as a better text about anti-slavery than most others.
That is, while Paul had not asked Philemon to free his slave, he simply asked him as follows:
Philm 8, 9, 17 - So although in Christ I am bold enough to order you
to do what is proper, I prefer to appeal on the basis of love. ... So
if you consider me a partner, receive him as you would receive me.
Paul is implementing the "Law of Christ" (Gal 6:2, 1 Cor 9:21), or the "Law of Liberty" (James 1:25, 2:12). See also Rom 13:8, 10. Paul wanted Philemon to act out of love to a fellow Christian (Phil 1:16, John 13:34, 35).
APPENDIX - Freedom of Choice
Freedom of choice is another of the implicit teachings of Scripture. However, a few passages come close to being explicit. Let us examine a sample of the Bible data.
- Gen 2:16, 17 – the original choice given to Adam and Eve to choose service to God.
- 1 Cor 10:13 – God is gracious enough to only allow temptations that we can bear. This reveals that God recognizes the effect that sin has on our will; sin weakens our will but God helps by both strengthening our will and only allowing temptations that we can bear.
- 2 Peter 3:9 – God is patient wanting all people to decide for Him.
- Gal 5:13 – We are given freedom by God but the privilege should not be abused.
- John 7:17 – People can choose to do the will of God and such a choice bring further enlightenment.
- Josh 24:15 – The Israelites were encouraged to choose God.
- Mark 8:34 – Choosing to serve God involves personal sacrifice which is why it is such a serious decision.
- Rev 3:20 – God wants to be with us but we must choose to allow Him into our lives.
- Gal 5:16, 17, John 8:34-36 – Sin enslaves but the Christian life by the Spirit gives freedom.
- Isa 55:6, 7 – Isaiah encourages the people to choose service to God over all else.
- Deut 30:19, 20 – Moses encourages the people to choose between life and death.
- Exe 18 – an entire chapter about the consequences of choice which ends with the plea, “Repent and live!”
Thus, while Biblically implicit, the concept of the freedom to choose to serve God or otherwise is woven into the very fabric of scripture. See “Election” for a discussion about Calvinism and its attitude to Freedom.
In addition to the above, there is a more fundamental reason why freedom of choice is essential to the plan of salvation. Observe the following:
- John 13:34, “A new command I give you: Love one another. As I have loved you, so you must love one another.”
- John 15:12, “My command is this: Love each other as I have loved you.”
- 1 John 4:7, 8, 11, 16, “Dear friends, let us love one another, for love comes from God. Everyone who loves has been born of God and knows God. Whoever does not love does not know God, because God is love … Dear friends, since God so loved us, we also ought to love one another … No one has ever seen God; but if we love one another, God lives in us and his love is made complete in us … And so we know and rely on the love God has for us. God is love. Whoever lives in love lives in God, and God in them … We love because he first loved us.”
It is immediately apparent that love is the very essence of God and our relationship with Him and each other. Now, here is the point; love cannot be forced else it is not love. A programmed machine can recite loving sentiments but does not love. Thus, love can only be love when there is a free choice to love.
Therefore, for love to exist there must be freedom of choice. Stated another way, if God were to force us to love and obey Him, we would not love God at all and God would be saving machines.