'Free' in the Bible

If your brother, a Hebrew man, or a Hebrew woman, is sold to you, and serves you six years; then in the seventh year you shall let him go free from you.

When you let him go free from you, you shall not let him go empty:

It shall not seem hard to you, when you let him go free from you; for to the double of the hire of a hireling has he served you six years: and Yahweh your God will bless you in all that you do.

When a man takes a new wife, he shall not go out in the army, neither shall he be assigned any business: he shall be free at home one year, and shall cheer his wife whom he has taken.