Tanach do Kapłańska 23:8

וְהִקְרַבְתֶּ֥ם אִשֶּׁ֛ה לַיהוָ֖ה שִׁבְעַ֣ת יָמִ֑ים בַּיּ֤וֹם הַשְּׁבִיעִי֙ מִקְרָא־קֹ֔דֶשׁ כָּל־מְלֶ֥אכֶת עֲבֹדָ֖ה לֹ֥א תַעֲשֽׂוּ׃ (פ)

A składajcie ofiary ogniowe Wiekuistemu przez siedm dni; siódmego zaś dnia - zgromadzenie świąteczne; żadnej pracy uciążliwej nie wykonywajcie!" 

Exodus

This day shall be for you a [day of] remembrance. You shall celebrate it as a festival to Adonoy, throughout your generations. It is an eternal statute that you must celebrate it.
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Exodus

You must eat matzos for seven days, but before the first day you must remove [all] leaven from your homes; for anyone who eats chametz, that soul will be cut off from Yisrael. [Chametz is forbidden] from the first day [of Pesach] until [after] the seventh day.
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Exodus

The first day shall be a holy assembly and the seventh day shall be a holy assembly to you. No work shall be done on them, only for [the preparation of food] which will be eaten by every person, that alone may be done for you.
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