15 Seven days you shall eat unleavened bread. On the first day you shall put away leaven 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 there shall be a holy convocation, and on the seventh day there shall be a holy convocation for you. No manner of work shall be done on them; but that which every man must eat—that only may be prepared for you.
17 You shall observe the Feast of Unleavened Bread. For on this very day I brought your armies out of the land of Egypt. Therefore you shall 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 until the twenty-first day of the month at evening.
19 Seven days shall there be no leaven found in your houses, for whoever eats that which is leavened, that person 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 you shall eat unleavened bread.
21 Then Moses called for all the elders of Israel and said to them, “Draw out and take for yourselves a lamb according to your families and kill the Passover lamb.