1 Corinthians 9:27
But I roughly treat my body, and bring it into subjection: lest that by any means, when I have preached to others, I myself should be disqualified.
The rich rules over the poor, and the borrower is servant to the lender.
Both your male and female slaves, whom you shall have, shall be of the nations that are round about you; of them shall you buy male and female slaves.
Also of the children of the strangers that do sojourn among you, of them shall you buy, and of their families that are with you, whom they begat in your land: and they shall be your possession.
And he said, Now also let it be according unto your words: he with whom it is found shall be my servant; and you shall be blameless.
2 Corinthians 11:20
For you permit it, if a man brings you into bondage, if a man devours you, if a man takes of you, if a man exalts himself, if a man smites you on the face.
For we are sold, I and my people, to be destroyed, to be slain, and to perish. But if we had been sold for bondmen and bondwomen, I would have held my tongue, although the enemy could never compensate for the king's loss.
Which things are an allegory: for these are the two covenants; the one from mount Sinai, which brings forth to bondage, which is Hagar.
And it came to pass in process of time, that the king of Egypt died: and the children of Israel groaned by reason of the bondage, and they cried, and their cry came up unto God by reason of the bondage.
But afterward they turned, and caused the servants and the handmaids, whom they had let go free, to return, and brought them into subjection for servants and for handmaids.
But you turned and profaned my name, and caused every man his servant, and every man his handmaid, whom you had set at liberty, at their pleasure, to return, and brought them into subjection, to be unto you for servants and for handmaids.
And refused to obey, neither were mindful of your wonders that you did among them; but hardened their necks, and in their rebellion appointed a leader to return to their bondage: but you are a God ready to pardon, gracious and merciful, slow to anger, and of great kindness, and forsook them not.