13 “You are to speak to the people of Israel and say, ‘Above all you shall keep my Sabbaths, for this is a sign between me and you throughout your generations, that you may know that I, the Lord, sanctify you.

17 ^qIt is a sign forever between me and the people of Israel that ^rin six days the Lord made the heavens and the earth, and ^son the seventh day he rested and was refreshed.’”