Charles Ellicott Commentary Ezekiel 4:9

"Take thou also 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 shalt lie upon thy side, even three hundred and ninety days, shalt thou eat thereof." — Ezekiel 4:9 (ASV)

Take thou also unto thee wheat.— The grains enumerated are of all kinds, from the best to the worst, indicating that every sort of food would be sought after in the dire straits of the siege. If the mixing of these in one vessel and making bread of them all together was not against the exact letter of the law, it was, at least, a plain violation of its spirit (Leviticus 19:19; Deuteronomy 22:9), thus again indicating the stern necessity that would be imposed upon the people.

Three hundred and ninety days.— No mention is made here of the additional forty days. (See Excursus.)