15For seven days you must eat unleavened bread. On the first day you are to remove the leaven from your houses. Whoever eats anything leavened from the first day through the seventh must be cut off from Israel.
16On the first day you are to hold a sacred assembly, and another on the seventh day. You must not do any work on those days, except to prepare the meals— that is all you may do.
— Exodus 12:15-16