Leviticus 23:3New Revised Standard Version (NRSV)
The Sabbath, Passover, and Unleavened Bread
3 Six days shall work be done; but the seventh day is a sabbath of complete rest, a holy convocation; you shall do no work: it is a sabbath to the Lord throughout your settlements.
Leviticus 23:3New International Version (NIV)
3 “‘There are six days when you may work, but the seventh day is a day of sabbath rest, a day of sacred assembly. You are not to do any work; wherever you live, it is a sabbath to the Lord.