Variantly: "on the fifteenth day of the second month": Why is the day mentioned? To know on which day the manna descended for Israel. Israel ate from the wafer that they took out of Egypt for thirty-one days, viz. (Exodus 12:39) "And they baked the dough which they had taken out of Egypt, etc.", and (here) "on the fifteenth day of the second month of their going out from the land of Egypt." And what is written at its side (Ibid. 5)? "Behold, I shall rain down for you bread from heaven," (the wafer having sufficed for thirty-one days, from the fifteenth of Nissan until the sixteenth of Iyyar.) R. Shila says: It sufficed for sixty-one meals.