"Observe the sabbath day and keep it holy, as the LORD your God has commanded you. Six days you shall labor and do all your work, but the seventh day is a sabbath of the LORD your God; you shall not do any work - you, your son or your daughter, your male or female slave, your ox or your ass, or any of your cattle, or the stranger in your settlements, so that your male and female slave may rest as you do. Remember that you were a slave in the land of Egypt and the LORD your God freed you from there with a mighty hand and an outstretched arm; therefore the LORD your God has commanded you to observe the sabbath day."
Deuteronomy, 5: 12-15
(JPS)