'Sabbath day' in the Bible

“Remember the Sabbath (seventh) day to keep it holy (set apart, dedicated to God).

For in six days the Lord made the heavens and the earth, the sea and everything that is in them, and He rested (ceased) on the seventh day. That is why the Lord blessed the Sabbath day and made it holy [that is, set it apart for His purposes].

For six days work may be done, but the seventh is the Sabbath of complete rest, sacred to the Lord; whoever does work on the Sabbath day must be put to death.

You shall not kindle a fire in any of your dwellings on the Sabbath day.”