Destroy all leaven on 14th day of Nisan

'Seven days you shall eat unleavened bread, but on the first day you shall remove leaven from your houses; for whoever eats anything leavened from the first day until the seventh day, that person shall be cut off from Israel.

Hebrew

טו שִׁבְעַת יָמִים, מַצּוֹת תֹּאכֵלוּ--אַךְ בַּיּוֹם הָרִאשׁוֹן, תַּשְׁבִּיתוּ שְּׂאֹר מִבָּתֵּיכֶם: כִּי כָּל-אֹכֵל חָמֵץ, וְנִכְרְתָה הַנֶּפֶשׁ הַהִוא מִיִּשְׂרָאֵל--מִיּוֹם הָרִאשֹׁן, עַד-יוֹם הַשְּׁבִעִי.

Greek

15 ἑπτὰ ἡμέρας ἄζυμα ἔδεσθε, ἀπὸ δὲ τῆς ἡμέρας τῆς πρώτης ἀφανιεῖτε ζύμην ἐκ τῶν οἰκιῶν ὑμῶν· πᾶς, ὃς ἂν φάγῃ ζύμην, ἐξολεθρευθήσεται ἡ ψυχὴ ἐκείνη ἐξ Ισραηλ ἀπὸ τῆς ἡμέρας τῆς πρώτης ἕως τῆς ἡμέρας τῆς ἑβδόμης.

• Parashah: Bo
• Sefer HaChinuch: 9
• Mishneh Torah: Times — Leaven and Unleavened Bread

• Exodus 12:15

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.