'Sabbath Day' in the Bible

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 voluntarily to the Lord, the gate that faces 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 after he goes out the gate shall be shut.