15. [In celebration of the Passover in future years] seven days shall you eat unleavened bread; even the first day you shall put away leaven [symbolic of corruption] out of your houses; for whoever eats leavened bread from the first day until the seventh day, that person shall be cut off from Israel.
16. On the first day you shall hold a solemn and holy assembly, and on the seventh day there shall be a solemn and holy assembly; no kind of work shall be done in them, save [preparation of] that which every person must eat–that only may be done by you.
17. And you shall observe the Feast of Unleavened Bread, for on this very day have I brought your hosts out of the land of Egypt; therefore shall you observe this day throughout your generations as an ordinance forever.
18. In the first month, on the fourteenth day of the month at evening, you shall eat unleavened bread [and continue] until the twenty-first day of the month at evening.
19. Seven days no leaven [symbolic of corruption] shall be found in your houses; whoever eats what is leavened shall be excluded from the congregation of Israel, whether a stranger or native-born. [I Cor. 5:6-8.]
20. You shall eat nothing leavened; in all your dwellings you shall eat unleavened bread [during that week].
21. Then Moses called for all the elders of Israel, and said to them, Go forth, select and take a lamb according to your families and kill the Passover [lamb].
22. And you shall take a bunch of hyssop, dip it in the blood in the basin, and touch the lintel above the door and the two side posts with the blood; and none of you shall go out of his house until morning.
23. For the Lord will pass through to slay the Egyptians; and when He sees the blood upon the lintel and the two side posts, the Lord will pass over the door and will not allow the destroyer to come into your houses to slay you.