The Spirit of the Lord is upon me; because the Lord hath anointed me to preach good tidings unto the meek; He hath sent me to bind up the broken-hearted, to proclaim LIBERTY to the captives, and the opening of the prison to them that are bound;
To proclaim the acceptable year of the Lord, and the day of vengeance of our God, to comfort all that mourn.
Liberty is the very essence of the gospel.
God did not give laws commanding slavery, but He did give a few regulating it as a custom tolerated by Him and practiced universally by men.
In other words, if men were determined to have slaves during their ignorance of the Gospel and truth, He wanted them to be properly treated as servants and not as abused slaves.
He made laws proclaiming liberty to all throughout the land [Lev. 25; Jer. 34: 8-17; Ezek. 46:17; Cp. Exod. 21:1-11; Lev. 22:10; Dt. 15:17-18; 24:14].
If Christianity would be followed wholly there would be no slaves or oppressed people of earth, for every man would be consecrated to the HIGHER GOOD OF ALL.
To enslave men, oppress and keep them in ignorance, force them against their free will, deprive them of their hire, prevent proper home life and training of children, FETTER THE INTELLECT, make some dependent on others and promote any inequality in rights contrary to the laws of God are entirely un-Christ-like.
Dake’s Annotated Reference Bible : Page 797