Remember the Sabbath day by keeping it holy.
Exodus 20:8. Remember the Sabbath-day. The object of this Commandment is that believers should exercise themselves in the worship of God; for we know how prone men are to fall into indifference, unless they have some props to lean on or some stimulants to arouse them in maintaining their care and zeal for religion.
God spoke these words Himself with dreadful pomp, not merely whispered through conscience or providence, but with the authority of Jehovah, the self-existent One. He bound Israel threefold: by His nature as eternal Lord, by covenant as their God, and by His power to reward obedience and punish disobedience.
AI summary
Commenting on Exodus 20:1-11
Remember the sabbath day, to keep it holy. By abstaining from all servile work and business, and from all pleasures and recreations lawful on other days, and by spending it in religious exercises, both internal and external. This the Israelites are bid to "remember", by observing it in such a manner, because this command had been given them before at the first time the manna...