When the Church Age began at Pentecost, its new instructions were set out in the letters to the Churches. These instructions included all the moral precepts of the Ten Commandments, but not a single word is given about keeping the weekly Sabbath. What we do find is that Christians who fell back into the habit of observing the Sabbaths were rebuked. Paul indeed describes the keeping of Sabbaths as, “a shadow of things to come, but the substance is Christ” (Colossians 2:14-17).