17. And you shall observe the feast of unleavened bread; for in this very same day have I brought your armies out of the land of Egypt: therefore shall you observe this day in your generations by an ordinance forever.
18. In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread, until the one and twentieth day of the month at evening.
19. Seven days shall there be no leaven found in your houses: for whosoever eats that which is leavened, even that soul shall be cut off from the congregation of Israel, whether he be a stranger, or born in the land.
20. You shall eat nothing leavened; in all your dwellings shall you eat unleavened bread.