'Bondman' in the Bible

Is Israel a bondman? Is he a home-born slave? Why is he become a spoil?

that every man should let his bondman, and every man his bondmaid, the Hebrew and the Hebrewess, go free, that none should exact service of them, that is, of a Jew his brother.

And all the princes and all the people that had entered into the covenant obeyed, every man letting his bondman and every man his bondmaid go free, that none should exact service of them any more: they obeyed, and let them go.

but ye have turned and profaned my name, and caused every man his bondman, and every man his bondmaid, whom ye had set at liberty at their pleasure, to return, and ye have brought them into subjection, to be unto you for bondmen and for bondmaids.