'Sabbath Day' in the Bible

"Thus says the Lord GOD: 'The gate of the inner court that looks toward the east shall be shut the six working days; but on the Sabbath day it shall be opened, and on the day of the new moon it shall be opened.

The burnt offering that the prince shall offer to the LORD shall be on the Sabbath day six lambs without blemish and a ram without blemish;

When the prince shall prepare a freewill offering, a burnt offering or peace offerings as a freewill offering to the LORD, one shall open for him the gate that looks toward the east; and he shall prepare his burnt offering and his peace offerings, as he does on the Sabbath day: then he shall go forth; and after his going forth one shall shut the gate.