Chapter 26 — Part III: The Decalogue — The Third Commandment
Section 14. "Remember" — The word remember is appropriately made use of at the beginning of the Commandment to signify that the sanctification of that particular day belonged to the ceremonial law. Of this it would seem to have been necessary to remind the people; for, although the law of nature commands us to devote a certain portion of time to the external worship to God, it fixes no particular day for the performance of this duty.