'Sabbath Day' in the Bible

‘Thus says the Lord God, “The gate of the inner court facing east shall be shut the six working days; but it shall be opened on the sabbath day and opened on the day of the new moon.

The burnt offering which the prince shall offer to the Lord on the sabbath day shall be six lambs without blemish and a ram without blemish;

When the prince provides a freewill offering, a burnt offering, or peace offerings as a freewill offering to the Lord, the gate facing east shall be opened for him. And he shall provide his burnt offering and his peace offerings as he does on the sabbath day. Then he shall go out, and the gate shall be shut after he goes out.