Exodus 31 13
“Now as for you, speak to the sons of Israel, saying, ‘You must keep My Sabbaths; for this is a sign between Me and you throughout your generations, so that you may know that I am the Lord who sanctifies you.
“Now as for you, speak to the sons of Israel, saying, ‘You must keep My Sabbaths; for this is a sign between Me and you throughout your generations, so that you may know that I am the Lord who sanctifies you.