Exodus 12:15-20

151Seven days you shall eat unleavened bread, but on the first day you shall 2remove leaven from your houses; for whoever eats anything leavened from the first day until the seventh day, 3that 4person shall be cut off from Israel. 165On the first day you shall have a holy assembly, and another holy assembly on the seventh day; no work at all shall be done on them, except what must be eaten 6by every person, that alone may be 7prepared by you. 17You shall also observe 8the Feast of Unleavened Bread, for on this 9very day I brought your hosts out of the land of Egypt; therefore you shall observe this day throughout your generations as 10a 11permanent ordinance. 1812In 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. 1913Seven days there shall be no leaven found in your houses; for whoever eats what is leavened, that 1415person shall be cut off from the congregation of Israel, whether he is an alien or a native of the land. 20You shall not eat anything leavened; in all your dwellings you shall eat unleavened bread.’”