'Sabbath Day' in the Bible

"Remember the Sabbath day to set it apart as holy.

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.

Six days work may be done, but on the seventh day is a Sabbath of complete rest, holy to the Lord; anyone who does work on the Sabbath day must surely be put to death.

You must not kindle a fire in any of your homes on the Sabbath day."