Slavery (on Thursdays)

[SteelCurtain]

This explains it.

Galatians 3:
23 Before the coming of this faith, we were held in custody under the law, locked up until the faith that was to come would be revealed.
24 So the law was our guardian until Christ came that we might be justified by faith.
25 Now that this faith has come, we are no longer under a guardian.
26 So in Christ Jesus you are all children of God through faith,
27 for all of you who were baptized into Christ have clothed yourselves with Christ.
28 There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus.
29 If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.

So, if I understand correctly, Jesus says that until heaven and earth pass, the law and the prophets won't change, Paul says you just gotta get baptized, none of it counts anymore. Who's wrong?

Also, if you actually read verse 28, you'll see that it actually belies your point, assuming you are highlighting that to show that the Bible does not condone slavery. Taking it the way you are (apparently) taking it, the NT also gets rid of Jews and Gentiles, males and females. No, it's saying that now anyone can be saved through Jesus, you don't have to be a free Israelite any more.