Exodus 12:19-21

Living Bible

¹⁹ For these seven days there must be no trace of yeast in your homes; during that time anyone who eats anything that has yeast in it shall be excommunicated from the congregation of Israel. These same rules apply to foreigners who are living among you just as much as to those born in the land. ²⁰ Again I repeat, during those days you must not eat anything made with yeast; serve only yeastless bread.”

²¹ Then Moses called for all the elders of Israel and said to them, “Go and get lambs from your flocks, a lamb for one or more families depending upon the number of persons in the families, and kill the lamb so that God will pass over you and not destroy you.