In the old agreement my wife served me chicken soup in a paper bowl- the soup grew cold quickly.
In the new covenant or agreement my wife promises to serve me chicken soup in a self-warming bowl so it stays hot.
I would call that the same soup but just a different bowl. Image being in a jail being served some sort of mush every meal. Then all of a sudden the admin switches from paper bowl to pretty self warming, self stiring, self cleaning, etc... bowls. Same old gruel, different bowl.
I'm not oppose to things being universal and unchanging but the 10 do not present themselves that way. If they did, they would have been declared that since the beginning, and with Moses they would have been emphasised in that way, then with Jesus he would have made no confusions and emphasized the 10 clearly rather than call them out as lacking like he does in Mat 5.
Pulling out thematic values in creation is not the same thing. this can often hinge upon how the 4th is viewed because it can be contrasted so well.
Creation has the 7th day, it has God ceasing (sabbath verb) his work. He ceases because the work (creation) is finished and the two become one expression. This is why the number 7 is viewed as a perfect number, a number of completion, God's number. Rest is an implicit product of ceasing work but what it really is capturing is the completed state of all things so that work is not merely rested for a moment, but is not needed. Rest in this sense needs to be paired with completion in order to be valid. "Complete" means the work is finished so the work is no longer needed and rest then is its product.
This is the value of sabbath on the 7th day. It is a base construct that the law leans on. The 4th is remembering this meaning but it does so through artificial means of a forced ceasing without the completed work. Because rest/completion is the same act in creation the 4th can never rest because the work is never done. This also means the 4th is calling for one to come to complete the work so that it may finally have rest. But the forth as it stands is more of a rest of mimicry, not of rest of substance, and it alone can never reproduce the 7th day and must repeat over and over hoping one day the work will be completed.
This is a powerful salvation metaphor. Immensely so. It also exposes the 4th as only being superficial. The purpose of the 4th is not to give us rest, because it can't do that, it is to expose our inability to complete the work and then our subsequent fraud in taking rest. It is repeated over and over to remind us we cannot do it. In this sense it is no different than the sacrafice which is also waiting for the perfect one to come and complete it in order to fulfill it fully without need to repeat it over and over. This is the meaning of the 7th day found in creation, rest and work are inseparable pairs. So the 4th can never enter in this rest because the work is never complete.
This is similar language to Hebrew 3 "They shall never enter my rest" albeit a focus of unbelief, but it again exposes it's not the 4th that procures rest. We can keep on doing it over and over and yet still the answer may be "you shall never enter my rest". So it is not the 4th itself that is the integral ingredient to what God calls his rest or what is spoken of with obedience. Even if the 4th points to it, the 4th is not it, because the 4th is missing the complete work.
Jesus reminds us of this need to have completed work through his work.
Luke 12:50 "But I have a baptism to undergo, and what constraint I am under until it is completed!"
John 4:34 "My food,” said Jesus, “is to do the will of him who sent me and to finish his work.
John 17:4 "I have brought you glory on earth by finishing the work you gave me to do."
And then finally...
John 19:30
When he had received the drink, Jesus said, “It is finished.” With that, he bowed his head and gave up his spirit.
After Jesus uttered those words, he dies on the cross. He dies on preparation day, (another reference to Christ) aka Friday before sabbath. Over sabbath his heart does not beat, his lungs do not inhale/exhale, he does not move, he does no work. He simply ceases, even his own breath. The work is complete, thus the rest is upon us. Christ has rested like no man can but he does not leave it there, he rose again and allows us to partake of that rest now.
If work is complete then rest is upon us now.