We can now truly appreciate the wonders of the Torah based on the chiddushim of the Rabbi of Lublin and the Tzlach. Based on their combined insights, we can achieve a better understanding of the mitzvah of Shabbas as presented by HKB”H to Yisrael in the second dibros (Devarim 5, 12): "שמור את יום השבת לקדשו כאשר צוך ה' אלקיך, ששת ימים תעבוד ועשית כל מלאכתך, ויום השביעי שבת לה' אלקיך לא תעשה כל מלאכה אתה ובנך ובתך... וזכרת כי עבד היית בארץ מצרים ויוציאך ה' אלקיך משם ביד חזקה ובזרוע נטויה, על כן צוך ה' אלקיך לעשות את יום השבת". Guard the day of Shabbas to sanctify it, as Hashem, your G-d, commanded you. Six days shall you work and accomplish all your work; but the seventh day is Shabbas to Hashem, your G-d; you shall not do any work—you, and your son, and your daughter . . . And you shall remember that you were a slave in the land of Mitzrayim, and Hashem, your G-d, has taken you out from there with a strong hand and an outstretched arm; therefore Hashem, your G-d, has commanded you to make the day of Shabbas. The commentaries discuss at length what the possible connection between “yetzias Mitzrayim” and Shabbas-observance might be.
Thankfully, we can shed some light on the subject based on our current discussion. Now, in the first dibrot, we are commanded to remember the Shabbas throughout all six days of the work week. By doing so, “all your work will be accomplished,” and you need not be concerned that you will be overwhelmed and mired in mundane matters of Olam HaZeh. “But the seventh day is Shabbas to Hashem, your G-d; you shall not do any work”—in other words, in the merit of Shabbas, you will be able to rise above all matters of Olam HaZeh even during the six weekdays.
HKB”H provides the proof for this in the second dibrot: “And you shall remember that you were a slave in the land of Mitzrayim, and Hashem, your G-d, has taken you out from there with a strong hand and an outstretched arm.” For, on account of observing Shabbas kodesh in Mitzrayim, Pharaoh was unsuccessful in his attempts to drown you in the Sha’ar HaNun of tumah. In that merit, HKB”H extricated you from the forty-nine levels of tumah to which you had sunk.
In truth, with this passuk, HKB”H conveys a more profound message to us: "וזכרת כי עבד היית בארץ מצרים ויוציאך ה' אלקיך משם ביד חזקה ובזרוע נטויה". Indeed, every single Shabbas, while we were still in Mitzrayim, HKB”H took us out of galus despite the efforts of Pharaoh to the contrary; "על כן צוך ה' אלקיך לעשות את יום השבת"—but even today, long after the exodus from Mitzrayim, HKB”H takes us out of the galus of the six weekdays, on which we are occupied with matters of Olam HaZeh; this happens on a weekly basis in the merit of Shabbas observance.