'Sabbath' in the Bible

Also, I instituted my Sabbath for them as a sign between me and them, so they would know that I am the LORD, who has set them apart."

Thus saith the Lord GOD; The gate of the inner court that looketh toward the east shall be shut the six working days; but on the sabbath it shall be opened, and in the day of the new moon it shall be opened.

And the burnt offering that the prince shall offer unto the LORD in the sabbath day shall be six lambs without blemish, and a ram without blemish.

Now when the prince shall prepare a voluntary burnt offering or peace offerings voluntarily unto the LORD, one shall then open him the gate that looketh toward the east, and he shall prepare his burnt offering and his peace offerings, as he did on the sabbath day: then he shall go forth; and after his going forth one shall shut the gate.