Exodus 12:19 WBT

¹⁷  And ye shall observe [the feast of] unleavened bread; for in this same day have I brought your armies out of the land of Egypt: therefore shall ye observe this day in your generations by an ordinance for ever.

¹⁸  In the first [month], on the fourteenth day of the month at evening, ye shall eat unleavened bread, till the one and twentieth day of the month at evening.

¹⁹  Seven days shall there be no leaven found in your houses: for whoever eateth that which is leavened, even that soul shall be cut off from the congregation of Israel, whether he shall be a stranger, or born in the land.

²⁰  Ye shall eat nothing leavened: in all your habitations shall ye eat unleavened bread.

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