I agree with some of your teaching but the point that I want to address is that you continue to mention Romans 13:10 of the commandments to love.
But by doing that and what you said previously about the 10 Commandments you seem to be ignoring what Apostle Paul said in Romans 13:9. That the moral commands of God based within the 10 Commandments plus any other commandment given by the Lord will be upheld by walking in love, meaning born again believers will follow those commandments out of love.
Here is a list of where the 10 Commandments are upheld in the NT;
Fourth
Commandment
Luke 4:16; 23:55-56; Acts 17:1-2; 18:4; Hebrews 4:9; 1 John 2:6
Luke 4:16 is a mention of Jesus reading the Old Testament in the synagogue. Jesus was a Jew under the Law and did keep
the Old Covenant laws, including the Sabbath.
Luke 23:55-56 relates to two Jewish women who rested on the Sabbath after the crucifixion. Jewish believers did not discontinue keeping elements of the Old Covenant Law even as late as Acts 21 was written. Those elements were not
required of Gentile believers, though. Colossians 2:16-17 and Acts 15 speaks to this issue. I do not deny that Jewish believers, including the apostle Paul, continued to observe elements of the Old Covenant. However, they did not do so for
salvation purposes; they did so for cultural reasons or to further the cause of the Gospel. Requiring such observances of Gentiles was the error of the Judaizers in Galatians, as well as the false teaching of those in Colossians 2 who were trying to force Gentiles to observe them.
Acts 17:1-2 Paul taught in the synagogues on the Sabbath. The synagogues were a fertile mission field for evangelism. In addition, he was a Jew who continued to observe some elements of the Old Covenant, but not for salvation. It was a matter
of his preference and his culture. I would argue that he lived in a different manner when he was amongst Gentiles based on I Cor 9:20ff:
I Cor 9:20-22
20To the Jews I became as a Jew, so that I might win Jews; to those who are under the Law, as under the Law though not being myself under the Law, so that I might win those who are under the Law;
21to those who are without law, as without law, though not being without the law of God but under the law of Christ, so that I might win those who are without law.…
Hebrews 4:9 I have written a thread on Hebrews 4. The summary is that Jesus Christ and placing our faith in him as our spiritual rest is what Hebrews 4 is discussing here. A special word
sabbatismos is used here for Sabbath-rest. It is the only place this word is used in Scripture...
sabbaton is used elsewhere. I contend that this special use of the word is due to the nature of the rest that it is describing, which is not the weekly Sabbath, but it is the rest in Christ which believers enjoy when they place their faith in Him. Jesus was the fulfillment of the Sabbath:
Matthew 11:28-30
28"Come to Me, all who are weary and heavy-laden, and I will give you rest.
29"Take My yoke upon you and learn from Me, for I am gentle and humble in heart, and YOU WILL FIND REST FOR YOUR SOULS.
http://christianchat.com/bible-discussion-forum/115326-hebrews-4-9-real-sabbath-jesus.html
I John 2:6 says whoever says he abides in him ought to walk in the same way in which he walked. The question would be, in what respect? Jesus was a Jew under the Old Covenant. He was also physically circumcised..does that mean I need to become physically circumcised? He died a gruesome death on the Cross to secure the salvation of mankind..does that mean that I need to do the same thing? He wore tassels on his garments as a Torah observer..does that mean that I need to do the same thing?
More importantly, Colossians 2:6-7 calls the Sabbath, New Moon observances, and annual festivals to be shadows and not the Reality, which is Christ. Comparing Colossians 2:6-7 with Hebrews 10:1-2 is very instructive in this regard. Hebews 10:1-2 applies to animal sacrifices, and calls them shadows rather than the Reality, which is in Christ. Colosssians 2:16-17 uses the exact same language in regards to the Sabbath. It is so obvious that the SDAs know this and say that the Greek word for Sabbath in Colossians 2:16-17 doesn't refer to the weekly Sabbath, but they acknowledge that in the other 59 places it's used in the NT, it refers to the weekly Sabbath. Their reasoning is inconsistent, but they know that it would be very clear-cut that the weekly Sabbath no longer applies if they acknowledged this.
In brief, though, I understand your position as it was the fundamental point that convinced me to be a Sabbathkeeper..it's in the Ten Commandments so it still applies. The logic is flawed in that the entire Old Covenant, including the Ten Commandments, is done away with. The other nine still apply as they are moral absolutes, but not because they were a part of the Ten Commandments; it's because they are moral absolutes and are reiterated in some way in the apostolic teachings.
One other strong argument concerning the Sabbath is that Sabbath-breaking was never mentioned in any of the sin lists to the Gentiles, although many sins were. The glaring absence of this mention is indicative that it did not carry over into the New Covenant. Also, if slaves with unbelieving masters were added to the church, I am sure this issue would have been important. Unbelieving masters wouldn't have simply allowed them a day off due to their new faith.
Another point of reasoning is how does one observe the Sabbath in climates where it is perpetually dark or perpetually light for long periods of the year? Ellen G. White's solution to this was that no believers were allowed to live in these areas. Or..how would a person who is in a space station orbiting the earth observe the Sabbath? The legalism that is involved in making these sorts of determinations is absurd.
The same is not true of laws that are based on moral absolutes, such as sexual sin. It's a sin no matter where you are at. It is not relative to location.