17
"aIt is a sign between Me and the sons of Israel forever; bfor in six days the Lord made heaven and earth, but on the seventh day He ceased from labor, and was refreshed."
a
Exodus 31:13, Ezekiel 20:12
Exodus 31
13
"But as for you, speak to the sons of Israel, saying, 'aYou shall surely observe My sabbaths; for this is ba sign between Me and you throughout your generations, that you may know that I am the Lord who sanctifies you.
Ezekiel 20
12
"Also I gave them My sabbaths to be a asign between Me and them, that they might know that I am the Lord who sanctifies them.