Exodus 30-31.   Every one of the instructions in this chapter has particular application to the Hebrew people and the Israelite nation alone.  The altar was for the tabernacle from which only the people of Israel could worship.  The atonement census tax was for Israelites alone. The priests and tabernacle craftsmen were Israelites.

And when it comes to Sabbath observance, the text says this:

“You are to speak to the people of Israel and say, ‘Above all you shall keep my Sabbaths, for this is a sign between me and you throughout your generations, that you may know that I, the Lord, sanctify you.” (31:13)

“You shall keep the Sabbath, because it is holy for you.” (31:14).

“Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a covenant forever.It is a sign forever between me and the people of Israel that in six days the Lord made heaven and earth, and son the seventh day he rested and was refreshed.’”” (31:16-17).

The Bible encourages all nations to worship God, but does not command Gentiles to worship him by observing a Sabbath – whether Saturday or Sunday.

LORD, today is holy unto you, and so is tomorrow.  We celebrate our relationship with you and your grace which made it possible – every day.