Exodus 12:19 BBE

¹⁷  So keep the feast of unleavened bread; for on this very day I have taken your armies out of the land of Egypt: this day, then, is to be kept through all your generations by an order for ever.

¹⁸  In the first month, from the evening of the fourteenth day, let your food be unleavened bread till the evening of the twenty-first day of the month.

¹⁹  For seven days no leaven is to be seen in your houses: for whoever takes bread which is leavened will be cut off from the people of Israel, if he is from another country or if he is an Israelite by birth.

²⁰  Take nothing which has leaven in it; wherever you are living let your food be unleavened cakes.

²¹  Then Moses sent for the chiefs of Israel, and said to them, See that lambs are marked out for yourselves and your families, and let the Passover lamb be put to death.