“Those who lived according to the old order of things have come to a new hope, no longer keeping the Sabbath, but the Lord’s Day, in which our life is blessed by him and by his death” (CCC 2175 ...

For in six days the Lord made the heavens and the earth, the sea, and all that is in them, but he rested on the seventh day. Therefore the Lord blessed the Sabbath day and made it holy.