Musar for Pesachim 211:4

זכור את יום השבת לקדשו. This commandment testifies to the eternal nature of G–d, that He created the world out of nothing. We have a tradition that the two formulas זכור ושמור בדבור אחד נאמרו, the one here and the one in Deuteronomy were uttered by G–d simultaneously (Rosh Hashanah 27). The first version in our portion mentions the Creation, something which demonstrated חידוש העולם, G–d creating the universe in 6+1 days. The second version in Deuteronomy 5,12, introduced by the word שמור, mentions the Exodus, the occasion when G–d was seen to establish new ground rules for the universe. There He proved that He was the Creator. The meaning of His name י-ה-ו-ה was demonstrated in Egypt. Our sages say that when one consecrates the Sabbath over a cup of wine one alludes to a world in the future which will be on the spiritual level of the Sabbath all the time (Pesachim 106). We will merit that world of the future by observing the שמור part of this commandment in this present world. The Sabbath in the world of the future represents the mystical dimension of the emanation בינה, where the יין המשומר the wine from the days of גן עדן, has been preserved and is awaiting us.