Thematic Bible: During the feast of passover

You are to eat unleavened bread for seven days. On the first day be sure to remove all the leaven from your houses, because any person who eats anything leavened from the first day until the seventh will be cut off from Israel. Also, on the first day you're to hold a holy assembly, and on the seventh day you're to hold a holy assembly. No work is to be done during those days, except for preparing what is to be eaten by each person. ""You are to observe the Festival of Unleavened Bread, since on this very day I brought your tribal divisions from the land of Egypt. You are to observe this day from generation to generation as a perpetual ordinance. read more.
In the first month, from the evening of the fourteenth day of the month until the evening of the twenty-first day of the month, you are to eat unleavened bread. For seven days leaven is not to be found in your houses. Indeed, any person who eats anything leavened, is to be cut off from the congregation of Israel, whether an alien or a native of the land. You are not to eat what is leavened. You are to eat unleavened bread in all your settlements.'"