Genesis 41:29-37

Listen very carefully: seven years of great abundance will come throughout all the land of Egypt; but afterward seven years of famine and hunger will come, and [there will be such desperate need that] all the great abundance [of the previous years] will be forgotten in the land of Egypt [as if it never happened], and famine and destitution will ravage and destroy the land. So the great abundance will become forgotten in the land because of that subsequent famine, for it will be very severe. That the dream was repeated twice to Pharaoh [and in two different ways] indicates that this matter is fully determined and established by God, and God will bring it to pass very quickly. So now let Pharaoh [prepare ahead and] look for a man discerning and clear-headed and wise, and set him [in charge] over the land of Egypt [as governor under Pharaoh]. Let Pharaoh take action to appoint overseers and officials over the land, and set aside one-fifth [of the produce] of the [entire] land of Egypt in the seven years of abundance. Let them gather [as a tax] all [of the fifth of] the food of these good years that are coming, and store up grain under the direction and authority of Pharaoh, and let them guard the food [in fortified granaries] in the cities. That food shall be put [in storage] as a reserve for the land against the seven years of famine and hunger which will occur in the land of Egypt, so that the land (people) will not be ravaged during the famine.” Now the plan seemed good to Pharaoh and to all of his servants.