God blessed the seventh day and sanctified it,
because in it He rested from all His work which God had created and made.
Genesis 2:3
"As the new week began, God looked on the Sabbath He spent with Adam and Eve and blessed and sanctified it. But more than that, God sanctified it—that is, set it apart for holy use.
The biblical record builds on this declaration in
--the giving of the Ten Commandments and again
--specifically in the example of Christ."
SabbathTruth