Exodus 31:12-16

12Then the Lord said to Moses,

13‘Say to the Israelites, “You must keep my Sabbath days as special days. This will help you and your descendants to remember that you belong to me. You will remember that I, the Lord, have chosen you to be my people.

14The Sabbath day must be special for you, because it is a holy day. If anyone does not make the Sabbath a special day, you must punish him with death. If anyone does any work on a Sabbath day, he can no longer belong to my people.

15You may work for six days each week, but the seventh day is a day of rest. It is a holy day that is special to me, the Lord. If anyone does any work on a Sabbath day, you must punish him with death.

16The Israelites must always keep the Sabbath as a special day. They must obey the rules for the Sabbath day. Those rules are part of my covenant with my people that continues for ever.