'Slave' in the Bible

but the seventh day is the Sabbath of the Lord your God. On that day you must not do any work, you, your son, your daughter, your male slave, your female slave, your ox, your donkey, any other animal, or the foreigner who lives with you, so that your male and female slaves, like yourself, may have rest.

Remember that you were a slave in the land of Egypt and the Lord your God redeemed you; therefore, I am commanding you to do this thing today.

Furthermore, remember that you were a slave in Egypt, and so be careful to observe these statutes.

You must not return an escaped slave to his master when he has run away to you.