God said to Remember to keep the Sabbath day holy, God wrote these Words and spoke them that Jesus also kept and taught.
I've said this before, and I'll say it again, because people like you just keep trudging on, ignoring the point, and it is critically important: What Jesus said under the Law applied while the Law was still in effect. THE LAW IS NO LONGER IN EFFECT!
So, if Jesus taught the10 Commandments as required, along with the command to "remember the Sabbath Day," it was understood to be part of God's contract with Israel that at the Cross was annulled. The requirements that kept Mankind out of the Garden were nailed to the Cross so that Israel could eventually enter into Paradise by Grace.
There is no longer need to honor certain Feast Days in order to be in compliance to an outdated Hebrew contract. Those festivals were preliminary to Christ's work of atonement, and ceased to be of value when Christ died and rose again.
We now have access to Christ in heaven purely by faith with no need whatsoever to keep the Law of Moses. At any rate, Gentiles never did need to obey that Contract, because God never intended uninversal Salvation to come through the Law. For Israel it was a way of keeping Israel in relationship with God until Christ could come and do his work.
Circumcision was never in the Ten Commandments so not sure why you keep trying to compare it as if it were. Paul contrasted circumcision with God's commandments, the Sabbath is one of God's commandments Exo 20:6, thus saith the Lord so it matters, just like only worshipping the one true God. 1 Cor 7:19 Exo 20:11
My point was that both Circumcision and Sabbath observance were requirements *under the Law.* You ignore this common element--all 613 or so requirements were part of "God's Commandments" under the Law. If Circumcision is no longer required under the New Covenant, that means the entire Law has been annulled under the New Covenant.
Do certain commandments remain in in common between the New Covenant and the Old Covenant? Yes, God's moral requirements for Man will never go away. We must always live in the image and likeness of God.
But that does not mean that the Old Covenant of Israel did not go away--it did! While morality did not go away with the passing of the Law, its fulfilllment in the New Covenant has taken its place.
Sad one would think spending time with God on His holy day is legalism.
What's sad to you is joyful to me. We are liberated from focusing on one day here and one day there. Today, we can approach God every day, knowing that for us Christ has made every day holy, and has now allowed our good works into his Kingdom. We don't have to rest in order to have our good works sanctioned.