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.
21. Then Moses called for all the elders of Israel, and said unto them, Draw out and take you a lamb according to your families, and kill the passover.