We are not under the law, and are free from observing a Sabbath day.
...Unfortunately you're penalized -11 points for trying to separate 'Ceremonial' sabbaths and '7th day Sabbath', though the scriptures you mentioned made no separation between the two.
Since you want to play the point game *SIGH* I will have to deduct 50 points for not reading it thoroughly.
" 4These are the feasts of the LORD, even holy convocations, which ye shall proclaim in their seasons.
5In the fourteenth day of the first month at even is the LORD's passover. "
The fourteenth day of the first month at even certainly is NOT the 7th day of the week all the time.
Passover is a Ceremonial Sabbath. Don't believe so, wait till passover happens and ask the Jews why they all attend the Synagogue, because it's the sabbath. They shut down their jobs, they don't go in to work, they keep these ceremonial Sabbaths. They did it when Jesus was around and they do it now. And all of those ceremonial Sabbaths are found in Leviticus 23.
Please note that word sabbath means "to cease".
So as far as trying to say they aren't...shame on you.
All those things ARE in the New Covenant:
Romans 13
9 For the commandments, “You shall not commit adultery,” “You shall not murder,” “You shall not steal,” “You shall not bear false witness,”[a] “You shall not covet,” and if there is any other commandment, are all summed up in this saying, namely, “You shall love your neighbor as yourself"
What amazes me here is that you once again have missed the mark.
First of all there is NOTHING in this entire chapter that even notates that this is a new covenant, not to mention that PAUL could NEVER have any authority to changes God's word. He is the Lord thy God and he Changeth NOT. Jesus says in Matthew 5:18 "For assuredly, I say to you, till heaven and earth pass away, one jot or one tittle will by no means pass from the law till all is fulfilled."
First a covenant between God and man must come from God himself. God showed us this when he PERSONALLY wrote the the 10 commandments on stone and gave them to moses.
The only time God said he makes a new covenant is when the Israelites LOST the 10 commandments, so he said I will make a new covenant with you and put it on your hearts.
33But this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people.
They lost it, so God had to write it on their hearts for them to remember. A deep impression.
Now if you read this entire chapter and even the 2 around them you will see that Paul is teaching the Romans that the ultimate Goal of Gods law is LOVE, for God IS love, so therefore he reminds them of their duty to their fellow man, however what you have missed is that the first 4 commands are not towards men, but towards GOD. This is evident is Mark 12:17 where Jesus tells us to Render unto Caesar (MAN), that which is due unto him (the last 6 commandments), but Render unto God (the first four commandments) that which is due to him.
If that doesn't work for you then you just need to follow Jesus' example. Jesus kept the Sabbath, Jesus Loved his fellow man, therefore he kept his own word by rendering unto Caesar that which is his and unto God that which is is.
This will be my last post on this though. I believe you need to pray that the spirit leads you and you actually read the text provided by myself and everyone else and do a thorough study on it. Don't take my word for it. the Bible states it all.