(ח) שֵׁ֥שֶׁת יָמִ֖ים תֹּאכַ֣ל מַצּ֑וֹת וּבַיּ֣וֹם הַשְּׁבִיעִ֗י עֲצֶ֙רֶת֙ לַיהוָ֣ה אֱלֹהֶ֔יךָ לֹ֥א תַעֲשֶׂ֖ה מְלָאכָֽה׃ (ס)
(8) After eating unleavened bread six days, you shall hold a solemn gathering for the LORD your God on the seventh day: you shall do no work.
(ח) עצרת לה' אלהיך. עֲצוֹר עַצְמְךָ מִן הַמְּלָאכָה; דָּ"אַ — כְּנוּפְיָא שֶׁל מַאֲכָל וּמִשְׁתֶּה, לְשׁוֹן "נַעְצְרָה נָּא אוֹתָךְ" (שופטים י"ג):
(8) עצרת לה' אלהיך [AND ON THE SEVENTH DAY SHALL BE] A RESTRICTION IN HONOR OF THE LORD — i.e., restrict yourself from work (Chagigh 18a). — Another explanation is that עצרת denotes a gathering for eating and drinking (a banquet), like the expression used (Judges 13:15) “Let us detain (נעצרה) thee [that we may make ready a kid for thee]”.
(ז) בַּיּוֹם֙ הָֽרִאשׁ֔וֹן מִקְרָא־קֹ֖דֶשׁ יִהְיֶ֣ה לָכֶ֑ם כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֥א תַעֲשֽׂוּ׃
(7) On the first day you shall celebrate a sacred occasion: you shall not work at your occupations.
(ח) וְהִקְרַבְתֶּ֥ם אִשֶּׁ֛ה לַיהוָ֖ה שִׁבְעַ֣ת יָמִ֑ים בַּיּ֤וֹם הַשְּׁבִיעִי֙ מִקְרָא־קֹ֔דֶשׁ כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֥א תַעֲשֽׂוּ׃ (פ)
(8) Seven days you shall make offerings by fire to the LORD. The seventh day shall be a sacred occasion: you shall not work at your occupations.
(ח) מלאכת עבדה. אֲפִילוּ מְלָאכוֹת הַחֲשׁוּבוֹת לָכֶם עֲבֹדָה וְצוֹרֶךְ — שֶׁיֵּשׁ חֶסְרוֹן כִּיס בְּבַטָּלָה שֶׁלָּהֶן — כְּגוֹן דָּבָר הָאָבֵד, כָּךְ הֵבַנְתִּי מִתֹּ"כֹּ, דִּקָתָּנִי יָכוֹל אַף חוֹלּוֹ שֶׁל מוֹעֵד יְהֵא אָסוּר בִּמְלֶאכֶת עֲבוֹדָה וְכוּ':
(8) מלאכת עבדה [YOU SHALL DO NO] SERVILE WORK — Not even such labors as are regarded by you as an obligation and a necessity, the neglect of which involves loss of money, as, for instance, a matter that may become lost (that cannot be postponed without irretrievable loss). I understand this (that the above is the meaning of מלאכת עבדה) from Torat Cohanim (on .v 36 of this chapter), since it states there: I might think from what Scripture states (vv. 36, 37) כָּל מְלֶאכֶת עֲבֹדָה לֹא תַעֲשׂוּ אֵלֶּה מוֹעֲדֵי that מלאכת עבדה is forbidden also on the intermediate days of Passover and Tabernacles (lit., the week-days of the festivals). Scripture, however, states, “it (the eighth day) is a festival and ye shall do no מלאכת עבדה” thus intimating that on a day which is not a festival such work is permitted. The intermediate days are not regarded as a festival and the rule is that דבר האבד may be attended to. Hence the very question: “may מלאכת עבדה be done on the intermediate days?”, implies that the term denotes דבר האבד.