We know that passion cannot be vanquished by decree. The tenth injunction would, therefore, be practically futile, were it not for the 'commandment' regarding the Sabbath day to which about a third of the text of the Decalogue is devoted, and which is an epitome of all other commandments. For most of humanity, however, time has been an unconquerable enemy. No matter one's greatness, prowess, or power, time ultimately consumes it all, leaving only dust behind. Yet, like space, time is a gift from God, as much a part of His creation as the moon and stars.
Time is the dimension in which space exists, in which it is framed, in which it moves.
God created time, not as an enemy but as an instrument through which man and God can coexist together. Hence the importance of the seventh day. For through it we momentarily step back from the overwhelming dimension of space and get a new perspective on time, seeing it not as that which slowly, silently hurls us into oblivion, but as a medium by which we relate with God, who is ever calling us to a relationship that can lead to eternal life. The seventh-day Sabbath, therefore, shows that God is not only our Creator, but our Redeemer as well. Indeed, within the Sabbath flashes eternity.