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.
22. And you shall take a bunch of hyssop, and dip it in the blood that is in the basin, and strike the lintel and the two side posts with the blood that is in the basin; and none of you shall go out at the door of his house until the morning.
23. For the LORD will pass through to smite the Egyptians; and when he sees the blood upon the lintel, and on the two side posts, the LORD will pass over the door, and will not allow the destroyer to come in unto your houses to slay you.
24. And you shall observe this thing for an ordinance to you and to your sons forever.
25. And it shall come to pass, when you are come to the land which the LORD will give you, according as he has promised, that you shall keep this service.
26. And it shall come to pass, when your children shall say unto you, What mean you by this service?
27. That you shall say, It is the sacrifice of the LORD'S passover, who passed over the houses of the children of Israel in Egypt, when he smote the Egyptians, and delivered our houses. And the people bowed the head and worshiped.
28. And the children of Israel went away, and did as the LORD had commanded Moses and Aaron, so did they.