Exodus 31:13-15

International Standard Version

¹³ “You are to tell the Israelis: ‘You are to certainly observe my Sabbaths because it’s a sign between me and you from generation to generation, so you may know that I am the Lord who sanctifies you. ¹⁴ You are to observe the Sabbath, because it’s holy for you. Whoever profanes it is certainly to die; indeed, whoever does work on it is to be cut off from among his people. ¹⁵ Work may be done for six days, but the seventh day is a Sabbath of complete rest, holy to the Lord. Whoever does work on the Sabbath is certainly to die.