'Slave' in the Bible

You learned the gospel from Epaphras, our dear fellow slave -- a faithful minister of Christ on our behalf --

Here there is neither Greek nor Jew, circumcised or uncircumcised, barbarian, Scythian, slave or free, but Christ is all and in all.

Tychicus, a dear brother, faithful minister, and fellow slave in the Lord, will tell you all the news about me.

Epaphras, who is one of you and a slave of Christ, greets you. He is always struggling in prayer on your behalf, so that you may stand mature and fully assured in all the will of God.