'Slaves' in the Bible

But {afterward} they turned back and they brought back the [male] slaves and the female slaves whom they had let go free, and they subdued them as [male] slaves and female slaves.

"Thus says Yahweh, the God of Israel: 'I {made} a covenant with your ancestors on the day of my bringing them out from the land of Egypt, from [the] house of slaves, {saying},

But you turned back and you profaned my name when you brought back each one his [male] slave and each one his female slave, whom you had let go free according to their desire, and you subdued them to be to you as [male] slaves and as female slaves.'