Why We Observe Shabbat

וְזָכַרְתָּ֗֞ כִּ֣י־עֶ֤֥בֶד הָיִ֣֙יתָ֙ ׀ בְּאֶ֣רֶץ מִצְרַ֔֗יִם וַיֹּצִ֨אֲךָ֜֩ יְהֹוָ֤֨ה אֱלֹהֶ֤֙יךָ֙ מִשָּׁ֔ם֙ בְּיָ֥֤ד חֲזָקָ֖ה֙ וּבִזְרֹ֣עַ נְטוּיָ֑֔ה עַל־כֵּ֗ן צִוְּךָ֙ יְהֹוָ֣ה אֱלֹהֶ֔יךָ לַעֲשׂ֖וֹת אֶת־י֥וֹם הַשַּׁבָּֽת׃ {ס}

Remember that you were a slave in the land of Egypt and the ETERNAL your God freed you from there with a mighty hand and an outstretched arm; therefore the ETERNAL your God has commanded you to observe the sabbath day.

זָכ֛וֹר֩ אֶת־י֥֨וֹם הַשַּׁבָּ֖֜ת לְקַדְּשֽׁ֗וֹ׃ כִּ֣י שֵֽׁשֶׁת־יָמִים֩ עָשָׂ֨ה יְהֹוָ֜ה אֶת־הַשָּׁמַ֣יִם וְאֶת־הָאָ֗רֶץ אֶת־הַיָּם֙ וְאֶת־כׇּל־אֲשֶׁר־בָּ֔ם וַיָּ֖נַח בַּיּ֣וֹם הַשְּׁבִיעִ֑י עַל־כֵּ֗ן בֵּרַ֧ךְ יְהֹוָ֛ה אֶת־י֥וֹם הַשַּׁבָּ֖ת וַֽיְקַדְּשֵֽׁהוּ׃ {ס}

Remember the sabbath day and keep it holy. For in six days GOD made heaven and earth and sea—and all that is in them—and then rested on the seventh day; therefore GOD blessed the sabbath day and hallowed it.

וְשָׁמְר֥וּ בְנֵֽי־יִשְׂרָאֵ֖ל אֶת־הַשַּׁבָּ֑ת לַעֲשׂ֧וֹת אֶת־הַשַּׁבָּ֛ת לְדֹרֹתָ֖ם בְּרִ֥ית עוֹלָֽם׃ בֵּינִ֗י וּבֵין֙ בְּנֵ֣י יִשְׂרָאֵ֔ל א֥וֹת הִ֖וא לְעֹלָ֑ם כִּי־שֵׁ֣שֶׁת יָמִ֗ים עָשָׂ֤ה יְהֹוָה֙ אֶת־הַשָּׁמַ֣יִם וְאֶת־הָאָ֔רֶץ וּבַיּוֹם֙ הַשְּׁבִיעִ֔י שָׁבַ֖ת וַיִּנָּפַֽשׁ׃ {ס}

The Israelite people shall keep the sabbath, observing the sabbath throughout the ages as a covenant for all time: it shall be a sign for all time between Me and the people of Israel. For in six days GOD made heaven and earth, [before] ceasing from work and being refreshed on the seventh day.

שְׁלֹשָׁה נִכְנָסִין לַגּוּף, וְאֵין הַגּוּף נֶהֱנֶה מֵהֶן: גּוּדְגְּדָנִיּוֹת, וְכַפְנִיּוֹת, וּפַגֵּי תְמָרָה. שְׁלֹשָׁה אֵין נִכְנָסִין לַגּוּף, וְהַגּוּף נֶהֱנֶה מֵהֶן, אֵלּוּ הֵן: רְחִיצָה, וְסִיכָה, וְתַשְׁמִישׁ. שְׁלֹשָׁה מֵעֵין הָעוֹלָם הַבָּא, אֵלּוּ הֵן: שַׁבָּת, שֶׁמֶשׁ, וְתַשְׁמִישׁ. חֲמִשָּׁה וְשִׁשָּׁה וַעֲשָׂרָה סִימָן: חֲמִשָּׁה אֶחָד מִשִּׁשִּׁים, אֵלּוּ הֵן: אֵשׁ, דְּבַשׁ, וְשַׁבָּת, וְשֵׁינָה, וַחֲלוֹם. אֵשׁ — אֶחָד מִשִּׁשִּׁים לְגֵיהִנָּם. דְּבַשׁ — אֶחָד מִשִּׁשִּׁים לַמָּן. שַׁבָּת — אֶחָד מִשִּׁשִּׁים לָעוֹלָם הַבָּא. שֵׁינָה — אֶחָד מִשִּׁשִּׁים לַמִּיתָה. חֲלוֹם — אֶחָד מִשִּׁשִּׁים לַנְּבוּאָה.

The Gemara says: Three food items enter the body yet the body does not benefit from them: Cherries, bad dates, and unripe dates. In contrast: Three matters do not enter the body yet the body benefits from them, and they are: Washing, anointing, and usage [tashmish], commonly used as a euphemism for conjugal relations. Three matters are microcosms of the World-to-Come, and they are: Sabbath, the sun and usage. The numbers five, six, and ten are mnemonics for the categories to follow. The Gemara says: There are five matters in our world which are one-sixtieth of their most extreme manifestations. They are: Fire, honey, Shabbat, sleep, and a dream. The Gemara elaborates: Our fire is one-sixtieth of the fire of Gehenna; honey is one-sixtieth of manna; Shabbat is one-sixtieth of the World-to-Come; sleep is one-sixtieth of death; and a dream is one-sixtieth of prophecy.

וְאָמַר רָבָא בַּר מַחְסֵיָא אָמַר רַב חָמָא בַּר גּוּרְיָא אָמַר רַב: הַנּוֹתֵן מַתָּנָה לַחֲבֵירוֹ, צָרִיךְ לְהוֹדִיעוֹ. שֶׁנֶּאֱמַר: ״לָדַעַת כִּי אֲנִי ה׳ מְקַדִּשְׁכֶם״. תַּנְיָא נָמֵי הָכִי: ״לָדַעַת כִּי אֲנִי ה׳ מְקַדִּשְׁכֶם״, אָמַר לוֹ הַקָּדוֹשׁ בָּרוּךְ הוּא לְמֹשֶׁה: מַתָּנָה טוֹבָה יֵשׁ לִי בְּבֵית גְּנָזַי וְשַׁבָּת שְׁמָהּ, וַאֲנִי מְבַקֵּשׁ לִיתְּנָהּ לְיִשְׂרָאֵל, לֵךְ וְהוֹדִיעָם. מִכָּאן אָמַר רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל: הַנּוֹתֵן פַּת לְתִינוֹק, צָרִיךְ לְהוֹדִיעַ לְאִמּוֹ. מַאי עָבֵיד לֵיהּ? אָמַר אַבָּיֵי: שָׁאֵיף לֵיהּ מִשְׁחָא, וּמָלֵי לֵיהּ כּוּחְלָא. וְהָאִידָּנָא דְּחָיְישִׁינַן לִכְשָׁפִים מַאי? אָמַר רַב פָּפָּא: שָׁאֵיף לֵיהּ מֵאוֹתוֹ הַמִּין.

Incidental to the halakhic statement in his name, the Gemara also cites another statement that Rava bar Meḥasseya said that Rav Ḥama bar Gurya said that Rav said: One who gives a gift to another must inform him that he is giving it to him. As it is stated: “Only keep My Shabbatot for it is a sign between Me and you for your generations to know that I am God Who sanctifies you” (Exodus 31:13). When the Holy One, Blessed be He, gave Shabbat to Israel, He told Moses to inform them about it. That was also taught in a baraita: The verse states: “For I am God Who sanctifies you,” meaning that the Holy One, Blessed be He, said to Moses: I have a good gift in My treasure house and Shabbat is its name, and I seek to give it to Israel. Go inform them about it. From here Rabban Shimon ben Gamliel said: One who gives a gift of bread to a child needs to inform his mother that he gave it to him. The Gemara asks: What does he do to the child, so that his mother will know that he gave him a gift? Abaye said: He should smear him with oil or place blue shadow around his eye in an obvious manner. When the mother of the child notices and asks him about it, he will tell her that so-and-so gave him a piece of bread. The Gemara asks: And now that we are concerned about witchcraft involving oil or eye shadow, what should one who gives a gift do? Rav Pappa said: He should smear him with food of the same type that he gave him to eat.

וְכָל הָעוֹשֶׂה בּוֹ מְלָאכָה בִּטֵּל מִצְוַת עֲשֵׂה וְעָבַר עַל לֹא תַּעֲשֶׂה שֶׁנֶּאֱמַר (דברים ה יד) "לֹא תַעֲשֶׂה כָל מְלָאכָה".

Resting from labor on the seventh day fulfills a positive commandment, as [Exodus 23:12] states, "And you shall rest on the seventh day." Anyone who performs a labor on this day negates the observance of a positive commandment and also transgresses a negative commandment, for [ibid. 20:10] states

וְצִוָּה עַל שְׁבִיתַת הַשַּׁבָּת וּשְׁבִיתַת הַמּוֹעֲדִים וּשְׁבִיתַת הָאָרֶץ, וְהַכֹּל זֵכֶר לִיצִיאַת מִצְרַיִם וְזִכָּרוֹן לְמַעֲשֵׂה בְרֵאשִׁית, מִפְּנֵי שֶׁשְֹׁנֵי הָעִנְיָנִים דּוֹמִים מִפְּנֵי שֶׁנַּעֲשׂוּ בְחֵפֶץ הָאֱלֹהִים לֹא בְמִקְרֶה וְלֹא בְטֶבַע. וְהָיְתָה שְׁמִירַת הַשַּׁבָּת הִיא בְעַצְמָהּ הַהוֹדָאָה בָאֱלֹהוּת, אֲבָל –כְּאִלּוּ הִיא הוֹדָאָה בְדִבּוּר מַעֲשִׂי, כִּי מִי שֶׁמְּקַבֵּל מִצְוַת שַׁבָּת בַּעֲבוּר שֶׁבָּהּ הָיָה כְלוֹת מַעֲשֵׂה בְרֵאשִׁית, כְּבָר הוֹדָה בַּחִדּוּשׁ מִבְּלִי סָפֵק, וּמִי שֶׁהוֹדָה בַּחִדּוּשׁ הוֹדָה בַמְחַדֵּשׁ הָעוֹשֶׂה יִתְבָּרָךְ. וּמִי שֶׁלֹּא קִבְּלָהּ יִפֹּל בִּסְפֵקוֹת הַקַּדְמוּת וְלֹא תִזַּךְ אֱמוּנָתוֹ לְבוֹרֵא הָעוֹלָם. אִם כֵּן שְׁמִירַת מִצְווֹת הַשַּׁבָּת מְקָרֶבֶת אֶל הַבּוֹרֵא יוֹתֵר מֵהַפְּרִישׁוּת וְהַנְּזִירוּת.

Our law did not consider these matters optional, but laid down decisive injunctions concerning them, since it is not in the power of mortal man to apportion to each faculty of the soul and body its right measure, nor to decide what amount of rest and exertion is good, or to determine how long the ground should be cultivated till it finds rest in the years of release and jubilee The observance of the Sabbath is itself an acknowledgment of His omnipotence, and at the same time an acknowledgment of the creation by the divine word. He who observes the Sabbath because the work of creation was finished on it acknowledges the creation itself. He who believes in the creation believes in the Creator. He, however, who does not believe in it falls a prey to doubts of God's eternity and to doubts of the existence of the world's Creator.