'Free' in the Bible

Jehovah said, Verily I will set thee free for thy good; verily I will cause the enemy to meet thee kindly in the time of evil and in the time of affliction.

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 afterwards they turned, and caused the bondmen and the bondmaids whom they had let go free, to return, and brought them into subjection for bondmen and for bondmaids.

At the end of seven years ye shall let go every man his brother, a Hebrew, who hath sold himself unto thee; when he hath served thee six years, thou shalt let him go free from thee. But your fathers hearkened not unto me, neither inclined their ear.