Revelation 18 NLT
1After all this I saw another angel come down from heaven with great authority, and the earth grew bright with his splendor.
2He gave a mighty shout:
“Babylon is fallen—that great city is fallen!
She has become a home for demons.
She is a hideout for every foul
a spirit,
a hideout for every foul vulture
and every foul and dreadful animal.
b
3For all the nations have fallen
c
because of the wine of her passionate immorality.
The kings of the world
have committed adultery with her.
Because of her desires for extravagant luxury,
the merchants of the world have grown rich.”
4Then I heard another voice calling from heaven,
“Come away from her, my people.
Do not take part in her sins,
or you will be punished with her.
5For her sins are piled as high as heaven,
and God remembers her evil deeds.
6Do to her as she has done to others.
Double her penalty
d for all her evil deeds.
11The merchants of the world will weep and mourn for her, for there is no one left to buy their goods.
12She bought great quantities of gold, silver, jewels, and pearls; fine linen, purple, silk, and scarlet cloth; things made of fragrant thyine wood, ivory goods, and objects made of expensive wood; and bronze, iron, and marble.
13She also bought cinnamon, spice, incense, myrrh, frankincense, wine, olive oil, fine flour, wheat, cattle, sheep, horses, chariots, and bodies—that is, human slaves.
Slavery's last mention in the word of God. And the last traded item in the passage list.
At the time of the controversy of Jewish law, saying the Christians from among Jews and from gentiles, should be circumcised, Peter and John... the apostles took the stance that we do not need all of Judaism only not eating blood, and not fornicating. Slave or not, not fornicating. We are not under law.
Also at this time the first Christians, just born, had an economy unlike the Romans or Jews of their time, and not like that of Rome under Constantine. Honesty to the Holy Spirit was greatly vital and Annanias who lied when bringing his offering died.
The sexual morality, the economy, the revision of Judaism under Christ and His apostles together with the last mention of slavery in the Bible, probably by John in his old age, means slavery was condemned gently in the NT.