Exodus 12:13-15

13And the bloodH1818 shall beH1961 to you for a token upon the housesH1004 whereH834 ye are: and when I seeH7200 the bloodH1818, I will pass over you, and there shall no plagueH5063 beH1961 upon you to destroy you, when I smite the landH776 of EgyptH4714. 14And this dayH3117 shall beH1961 unto you for a memorialH2146, and ye shall keep it a feastH2282 to Jehovah: throughout your generationsH1755 ye shall keep it a feastH2282 by an ordinance for everH5769.

15SevenH7651 daysH3117 shall ye eatH398 unleavenedH4682 breadH4682; even the firstH7223 dayH3117 ye shall put away leavenH7603 out of your housesH1004: for whosoever eateth leavenedH2557 breadH4682 from the firstH7223 dayH3117 until the seventhH7637 dayH3117, that soulH5315 shall be cutH3772 off from IsraelH3478.