Sun(god) Day worshipers refer to this verse as an excuse to break Gods immutable Law. First there were additional sabbaths in the Old Testament and secondly man made additional rules for the Sabbath. These extra man made rules had no origin with Scripture but created a burden to the people. Instead of the Sabbath being a blessing and something looked forward to (communing with God), it was hoped nobody became sick or needed assistance on that day lest they be out of compliance. Which brings us to Mark 2:27 And He said unto them, The Sabbath was made for man, and not man for the Sabbath:
Jesus was not only validating the Sabbath but breaking down the barriers man had erected for vain purposes.
At that time as now there were emperors and kings declaring new rules and "holy days". Remember Daniel and the lions den? Daniel got cross ways with a kings edict. What about Christmas? Should a Christian judge another celebration of this (man made?) holiday? This says no. Is a person guilty of witchcraft for celebrating Halloween? Again no. Neither of these are for me but I don't judge others for their participation.