That's ok. I am not concerned with it. We both agree that the items mentioned in Colossians 2:16-17 are inapplicable to New Covenant Christians..you think that the weekly Sabbath isn't included in those items and I think it is. The reason is that sabbaton is only used in conjunction with the weekly Sabbath in the New Testament. In addition, the Sabbath points to Christ as our spiritual rest.
To be honest, if I thought the Sabbath applied, I would keep it. I did that for 10 years, plus all the festivals, clean and unclean meat laws, and triple tithing. Keeping just the weekly Sabbath would be nothing in the manner that you guys keep it..by the way I think that the way it was defined in the Old Testament was much different...in addition even Ellen G. White defined Sabbathkeeping a lot more radically than current day SDAs observe it.
I am totally confident that it does not apply to New Covenant believers though so I am not worried about the issue.
But if I thought it applied, where would I fellowship? I certainly wouldn't go to an Armstrongite or Seventh Day Adventist church. Both of them have doctrinal errors of an unacceptable nature to me. For instance, with the SDAs the prophet status of Ellen G. White would be a big red flag with me, as well as their anthropomorphic view of God, their investigative judgment which denies that sins of the believer are forgiven, and their rejection of Reformed theology which I embrace for the most part. With Armstrongites, they claim they will be part of the Godhead in the resurrection which is blasphemous, and they deny the salvation of non-Sabbathkeepers (actually they deny the salvation of all others outside of their organization including SDAs). As well, they deny justification by faith alone. So, I am not even in close alignment with either of those organizations. With my Evangelical Free congregation, I am in total alignment except on the eternal torment part..I still believe in annihilationism basically although I see some verses indicating otherwise.
I liked attending services at a Christian and Missionary Alliance church that had Saturday afternoon services. It fit well into my schedule as I didn't have to get up early. But I didn't do it because of thinking I needed to keep the Sabbath. I did it because it fit well into my schedule and I enjoyed hanging out with Christians on Saturday afternoon.