Romans 14:5

One day above another] The reference is, no doubt, to Jewish observances: cp. Galatians 4:10; Colossians 2:16. The principle is that salvation does not depend upon the observance of special days and seasons. These are indifferent in themselves, although to set apart special days may be practically useful. St. Paul would probably have included in this the keeping of Sunday. But he would have said that Sunday is no different from other days, because all days should be holy, not because all days are common. The six days should approximate as far as possible to Sunday, not Sunday to the six days. Hence the inestimable value of Sunday to maintain the level of spiritual life, quite apart from the benefit of its rest. Persuaded] RV 'assured.'