There is NO evidence he was talking about the Sabbath in this verse. That would be totally out of character and contradictory to the Paul we know about. The preponderance indicates this was about other ceremonial days and holidays. Is it a sin to not observe Christmas? There were two additional (sabbaths) holidays mentioned in the O.T. in laws of ordinances. There were constantly secular holidays declared by Emperor decree and so on and so forth.
The Sabbath was made for all of mankind and we know this because it was first started by God in Genesis to commemorate His creation. Gen. 2:2,3
NO EVIDENCE: If Saturday is not a day, you’re right. If it is, Paul said we can esteem it like every other day, didn’t he, and he said as much in Col. 2.16, “let no man judge you in respect to a sabbath day...”
SABBATH MADE FOR ALL MANKIND: It was made for man, i.e., the benefit of man, but not commanded of all mankind. As a matter of fact, it wasn’t commanded of anyone in Gen. 2, not anyone else until Ex. 16. Genesis doesn’t say it was started to commemorate Creation, just that since God rested on the sabbath is the reason he commanded rest of the Jews on the seventh day.
Naw...It was created for the Jews who painted their doors with blood...