Slavery was commonplace in Old Testament times, all nations had slaves. Israel as a nation were slaves for over 400 years; when they were freed God gave them laws for slaves that were not the same as the other nations. The slaves had rights in Israel’s social system, unlike other nations. When we think of slavery it conjures up the image of racial prejudice, but this was not the case. They did not treat them as non - human or animals but as men made in the image of God.
Eph 6:5-7: “Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ; not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart, with good will doing service, as to the Lord, and not to men.”
(A bondservant was one who willing to be a slave (servant) and did his work because he loved his master.)
Eph 6:5-7: “Bondservants, be obedient to those who are your masters according to the flesh, with fear and trembling, in sincerity of heart, as to Christ; not with eyeservice, as men-pleasers, but as bondservants of Christ, doing the will of God from the heart, with good will doing service, as to the Lord, and not to men.”
1 Tim. 6:2 “And those who have believing masters, let them not despise them because they are brethren, but rather serve them because those who are benefited are believers and beloved. Teach and exhort these things.”
In other words they still have this boss employee relationship, it did not end because they were both believers
Jewish slaves could not be held for more than six years and were given a choice to leave (Exod.21:2). they could voluntarily choose to remain: (Exod.21:5-6).
Slavery was more an occupation, servanthood with rights
Of course there was" abuse of power" over time , thus the need of the New Covenant
Paul speaks of all being baptized into Christ which makes us united, God sees us as equals. “There is neither Jew nor Greek, there is neither slave nor free, there is neither male nor female; for you are all one in Christ Jesus” (Gal. 3:28) No one is greater than the other if he is their master or has greater wealth or authority.