Commento su Genesi 41:55

ותרעב כל ארץ מצרים AND THE LAND OF EGYPT WAS FAMISHED — for all the grain they had stored up rotted except that of Joseph (cf. Genesis Rabbah 91:5)

ותרעב, each one had used up his private hoard either by eating it or selling it. Besides, they could not store a great deal, having had to surrender twenty per cent of their annual harvests to Joseph’s officials.

ותרעב כל ארץ מצרים, “The whole land of Egypt was famished, etc.” This verse speaks of the second year of the famine. It teaches that G’d had proclaimed that Egypt should suffer the pangs of hunger. We have a similar incidence in Kings II 8,1 כי קרא ה' לרעב, “for G’d has decreed famine.” Another verse in which the expression קרא is used in connection with famine is found in Psalms 105,16 קרא רעב על הארץ כל מטה לחם שבר, “He called down a famine on the land; destroyed every staff of bread.”
As a result the famine was being felt by the people, ויקרא העם אל פרעה ללחם, “the people called out to Pharaoh for food.” It is in the nature of people to cry out to those in whose power it is to satisfy their needs. We find a verse in Psalms 107,5 רעבים גם צמאים נפשם בהם תתעטף, “the hungry and thirsty, their spirit failed”. On the other hand: ויצעקו אל ה' בצר להם, “they cried out to G’d (after) they were in distress, etc.”