Ezekiel 4:9-10

9And thou, take unto thee wheat, and barley, and beans, and lentils, and millet, and spelt, and put them in one vessel, and make thee bread thereof, [according to] the number of the days that thou liest upon thy side: three hundred and ninety days shalt thou eat thereof.

10And thy meat which thou shalt eat shall be by weight, twenty shekels a day: from time to time shalt thou eat it.