Genesis 2:3

2:3 God blessed the seventh day and made it holy because on it he ceased all the work that he had been doing in creation.

Exodus 16:29

16:29 See, because the Lord has given you the Sabbath, that is why he is giving you food for two days on the sixth day. Each of you stay where you are; let no one go out of his place on the seventh day.”

Exodus 20:8-11

20:8 “Remember the Sabbath day to set it apart as holy. 20:9 For six days you may labor and do all your work, 20:10 but the seventh day is a Sabbath to the Lord your God; on it you shall not do any work, you, or your son, or your daughter, or your male servant, or your female servant, or your cattle, or the resident foreigner who is in your gates. 20:11 For in six days the Lord made the heavens and the earth and the sea and all that is in them, and he rested on the seventh day; therefore the Lord blessed the Sabbath day and set it apart as holy.

Ezekiel 20:12

20:12 I also gave them my Sabbaths as a reminder of our relationship, so that they would know that I, the Lord, sanctify them.

Ezekiel 20:20

20:20 Treat my Sabbaths as holy and they will be a reminder of our relationship, and then you will know that I am the Lord your God.”