Sabbath and Mark of the Beast-Inverse Relationship?

In the end times;
One cannot buy or sell if they don't have the Mark of the Beast. And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name. Revelation 13:17

Also one cannot buy or sell on the SABBATH- There dwelt men of Tyre also therein, which brought fish, and all manner of ware, and sold on the sabbath unto the children of Judah, and in Jerusalem.Then I contended with the nobles of Judah, and said unto them, What evil thing is this that ye do, and profane the sabbath day?Did not your fathers thus, and did not our God bring all this evil upon us, and upon this city? yet ye bring more wrath upon Israel by profaning the sabbath. Nehemiah 13:16-18

More evidence that the Mark of the Beast is a counterfiet to the Holy Sabbath Day of God? (This inverse relationship.)