For in six days the Lord made heaven and earth, and the sea, and all the things that are in them, and so he rested on the seventh day. For this reason, the Lord has blessed the day of the Sabbath and sanctified it.
"Speak to the sons of Israel, and you shall say to them: See that you keep my Sabbath. For it is a sign between me and you among your generations, so that you may know that I am the Lord, who sanctifies you.
If you restrain your foot on the Sabbath, from doing your own will on my holy day, and if you call the Sabbath delightful, and the Holy of the Lord glorious, and if you glorify him, while you do not act according to your own ways, and your own will is not found, not even to speak a word,
Moreover, I also gave to them my Sabbaths, so that these would be a sign between me and them, and so that they would know that I am the Lord, who sanctifies them.