Exodus 31:14-16 is very important in this debate:
“You shall keep the Sabbath, because it is holy for you; every one who profanes it shall be put to death; whoever does any work on it, that soul shall be cut off from among his people. Six days shall work be done, but the seventh day is a Sabbath of solemn rest, holy to the LORD; whoever does any work on the Sabbath day shall be put to death. Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a perpetual covenant.”
The words to pick out of this text are: Sabbath, Israel, perpetual, andcovenant. The most important word here is “covenant” because this is the agreement God made with His people, the Israelite. This means that the Commandments given to Moses for the people to follow was perpetual, that means for all time. However, there was a catch to this covenant. The people would have to be faithful to it. The Sabbath was the sign between the Lord and His people.
“Behold, the days are coming, says the LORD, when I will make a new covenant with the house of Israel and the house of Judah, not like the covenant which I made with their fathers when I took them by the hand to bring them out of the land of Egypt, my covenant which they broke, though I was their husband, says the LORD. But this is the covenant which I will make with the house of Israel after those days, says the LORD: I will put my law within them, and I will write it upon their hearts; and I will be their God, and they shall be my people. And no longer shall each man teach his neighbor and each his brother, saying, ‘Know the LORD,’ for they shall all know me, from the least of them to the greatest, says the LORD; for I will forgive their iniquity, and I will remember their sin no more.”