'Free' in the Bible

"When you acquire a Hebrew servant, he is to serve for six years, and in the seventh he is to go out a free man without paying anything.

But if the servant, in fact, says, "I love my master, my wife, and my children, and I won't go out a free man,'

"If a man strikes the eye of his male or female servant and destroys it, he is to release him as a free man in exchange for his eye.

If he knocks out the tooth of his male or female servant, he is to release him as a free man in exchange for his tooth.

"If an ox gores a man or woman so that they die, the ox is certainly to be stoned and its flesh may not be eaten, but the owner of the ox is free from liability.