QUICKIE/FUNFACT: (Devarim 5:12-16) "Shamor EsYom HaShabbas Likadsho…Kabeid Es Avicha V'Es Imecha…"
Why are the commandments of honoring ones father and mother and maintaining the sanctity of the Shabbos juxtaposed to one another?
The Baal Haturim in his commentary on the Chumash answers that just as one is supposed to honor his father and mother by dressing them nicely and by feeding them fine delicacies they are also supposed to celebrate the Shabbos by dressing beautifully and eating lavish meals.
(Divarim 3:27) "Aleh Rosh Hapisga V'Sah Enecha Yama V'Tzafona V'Teimana U'Mizracha V'Rieih BiEinecha Ki Lo Taavor Es HaYardein HaZeh"
The above Pasuk requires some explanation. After being told by Hashem that he wasn't going to be able to enter into Eretz Yisrael, Hashem tells Moshe Rabbeinu to go up on the mountain top and to look out to Eretz Yisrael. To the east, north, south and west. It makes perfect sense that Hashem would tell Moshe to look out onto Eretz Yisrael from the east, north and south because that was holy land that he was not going to be able to touch. Why would Hashem tell him to look in the east? The east isn't Eretz Yisrael?!
Rav Shimon Schwab Tz"l answers that it is correct to say that the land in the east is not Eretz Yisrael. It is however a land known as Ever Hayardein, which was later to be occupied by Bnei Reuven and Bnei Gad. A land that after the capturing of Eretz Yisrael contained a degree of Kiddushas Eretz Yisrael.
For this reason Hashem instructs Moshe to look onto the west as his final measure. Only after Bnei Yisrael captured the land in the east, north and south was the land in the west considered holy. Moshe was being told to first look at Eretz Yisrael proper and all of its borders and afterwards to look at Ever HaYarden fore there also there is an element of kiddusha. First comes the complete holiness of Eretz Yisrael and then the partial holiness of Ever Hayarden.
HAVE A FANTASTIC SHABBOS!