'Sabbath day' in the Bible

'Remember the Sabbath-day to sanctify it;

for six days hath Jehovah made the heavens and the earth, the sea, and all that is in them, and resteth in the seventh day; therefore hath Jehovah blessed the Sabbath-day, and doth sanctify it.

Say to the children of Israel that they are to keep my Sabbaths; for the Sabbath day is a sign between me and you through all your generations; so that you may see that I am the Lord who makes you holy.

Six days is work done, and in the seventh day is a sabbath of holy rest to Jehovah; any who doeth work in the sabbath-day is certainly put to death,

ye do not burn a fire in any of your dwellings on the sabbath-day.'