“Specifically called out as optional where” in the New Testament.
First you would have to prove that any of God’s commandments are “optional”.
Then you would have to provide a “Thus sayeth the Lord” where God says, “You know that day I created and called my own, in the Old Testament? Well, I changed my mind.”
Then, you would need to provide an answer as to why God tells us that in the Earth made new, God tell us that we were going to come to worship Him from one Sabbath to another" Isaiah 6:23
Where in any of the verses mentioned in your post, has God telling us His people, grafted into the family of God, that His Sabbath can be profaned?
Remember that God’s Word can not be used to contradict His Word. If there is a discrepancy found, it is because of our understanding, which must be changed.
So if you believe that God tells us to keep His Sabbath in one place, a commandment for which those who broke it could have been put to death, (the wages of sin), and then someone says "God didn’t mean that. He changed His Law. Setting one of His commandments aside, even though He said (heaven and earth would pass, before my Word changes.), Even though He says that (if you break one, you break all), (Even though, we don’t find any direct commands that would counter a direct command),
Where would you be getting this understanding from?
How does God telling us, “that He is Lord of what He created, the Sabbath”, telling us that we can now break His Law? My understanding is that God was telling those who were trying to tell Him how to keep His own law, that He knew how to keep His own law.
And if what you are suggesting is true, would it not have been in effect from the time the Sabbath was created? If God making the Sabbath for man, way back then, meant that man can do as they please with His Sabbath, then why did God bother to include “keeping the Sabbath holy” as one of His commandments?
When you go to a brother or sister, fallen in a particular sin, are you going to quote the whole of God’s commandments to explain that their particular sin is causing them to be lost?
No. You present that sin.
So today, there are many who do not know that they are in danger of being lost. If they know of God’s commandment and yet refuse to honor Him by keeping it, Isaiah 58:13-14; Exodus 3:clock5:
Christ did not break His Sabbath. He demonstrated how it was meant to be kept. He demonstrated that the Sabbath was meant to do good on. No work, yes. No finding our own pleasure, yes. But to not do good on, No.