So you get to have your say but do not wish to give me time for a rebuttal. I see.
Col. 2 has nothing to do with the Sabbath. So that's a red herring. An ordained Methodist taking someone to the woodshed over Scriptural differences impresses me not.
God has ordained that six days are common and the seventh is set aside special. Then when you (and the others) chime in we worship on all of seven days. But that is NOT what God commanded you to do. When all days are special then none of the days are special. Human reasoning might tell you that you are seven times more holy than the Sabbatarian but that is not what the Bible will tell you.
Peace be to you
It is not clear at all that Jesus spent His Sabbaths according to the Pharisee's customs of not even lifting a finger on Sabbath if they could avoid it. Or limiting His hiking to the distance from His abode to the synagogue or Temple, and back.
How much have you read of the history of Sabbatarianism in the Christian culture? Paul rightly emphasized the Christian liberty of freedom from the religionist's hypocrisy since Jesus completely fulfilled the Law, and put it to rest.
I think an infantry squad under fire might have some different ideas, and so might the nurse whose patient is gasping for breath. Etc. etc. etc.
We're talking here about whether or not you can "lose your salvation" by electing to tune up your car on Friday evening or Saturday. You can have all the rebuttal you want as long as you don't diminish the completeness of Jesus's life, death, and resurrection; or the measure of grace God confers upon His child.