Leviticus 26:26
26:26 When I break off your supply of bread, ten women will bake your bread in one oven; they will ration your bread by weight, and you will eat and not be satisfied.
Leviticus 23:6
23:6 Then on the fifteenth day of the same month will be the festival of unleavened bread to the Lord; seven days you must eat unleavened bread.