A surviving high flood record in Amenemhat III 20th year show the flood levels rose to an average of 21 metres for the next 6 years or so. These would certainly have been disastrous floods with three to four times the volume of water in the Nile, bringing destruction and leaving the land inundated for successive months. Especially if this was a serial event year after year, the fields would have been destroyed and could not have been replanted for a long period of time. The second decade of Amenemhat’s reign coincided with Joseph’s prophecy of the coming famine.
53When the seven years of plenty which had been in the land of Egypt came to an end, 54and the seven years of famine began to come, just as Joseph had said, then there was famine in all the lands, but in all the land of Egypt there was bread. 55So when all the land of Egypt was famished, the people cried out to Pharaoh for bread; and Pharaoh said to all the Egyptians, “Go to Joseph; whatever he says to you, you shall do.” 56When the famine was spread over all the face of the earth, then Joseph opened all the storehouses, and sold to the Egyptians; and the famine was severe in the land of Egypt. 57The people of all the earth came to Egypt to buy grain from Joseph, because the famine was severe in all the earth.
Genesis 41:53-57
Joseph’s Brothers Sent to Egypt
1Now Jacob saw that there was grain in Egypt, and Jacob said to his sons, “Why are you staring at one another?” 2He said, “Behold, I have heard that there is grain in Egypt; go down there and buy some for us from that place, so that we may live and not die.” 3Then ten brothers of Joseph went down to buy grain from Egypt. 4But Jacob did not send Joseph’s brother Benjamin with his brothers, for he said, “I am afraid that harm may befall him.” 5So the sons of Israel came to buy grain among those who were coming, for the famine was in the land of Canaan also.
6Now Joseph was the ruler over the land; he was the one who sold to all the people of the land. And Joseph’s brothers came and bowed down to him with their faces to the ground. 7When Joseph saw his brothers he recognized them, but he disguised himself to them and spoke to them harshly. And he said to them, “Where have you come from?” And they said, “From the land of Canaan, to buy food.”
8But Joseph had recognized his brothers, although they did not recognize him. 9Joseph remembered the dreams which he had about them, and said to them, “You are spies; you have come to look at the undefended parts of our land.” 10Then they said to him, “No, my lord, but your servants have come to buy food. 11“We are all sons of one man; we are honest men, your servants are not spies.” 12Yet he said to them, “No, but you have come to look at the undefended parts of our land!” 13But they said, “Your servants are twelve brothers in all, the sons of one man in the land of Canaan; and behold, the youngest is with our father today, and one is no longer alive.” 14Joseph said to them, “It is as I said to you, you are spies; 15by this you will be tested: by the life of Pharaoh, you shall not go from this place unless your youngest brother comes here! 16“Send one of you that he may get your brother, while you remain confined, that your words may be tested, whether there is truth in you. But if not, by the life of Pharaoh, surely you are spies.” 17So he put them all together in prison for three days.
18Now Joseph said to them on the third day, “Do this and live, for I fear God: 19if you are honest men, let one of your brothers be confined in your prison; but as for the rest of you, go, carry grain for the famine of your households, 20and bring your youngest brother to me, so your words may be verified, and you will not die.” And they did so. 21Then they said to one another, “Truly we are guilty concerning our brother, because we saw the distress of his soul when he pleaded with us, yet we would not listen; therefore this distress has come upon us.” 22Reuben answered them, saying, “Did I not tell you, ‘Do not sin against the boy’; and you would not listen? Now comes the reckoning for his blood.” 23They did not know, however, that Joseph understood, for there was an interpreter between them. 24He turned away from them and wept. But when he returned to them and spoke to them, he took Simeon from them and bound him before their eyes. 25Then Joseph gave orders to fill their bags with grain and to restore every man’s money in his sack, and to give them provisions for the journey. And thus it was done for them.
26So they loaded their donkeys with their grain and departed from there. 27As one of them opened his sack to give his donkey fodder at the lodging place, he saw his money; and behold, it was in the mouth of his sack. 28Then he said to his brothers, “My money has been returned, and behold, it is even in my sack.” And their hearts sank, and they turned trembling to one another, saying, “What is this that God has done to us?”
Simeon Is Held Hostage
29When they came to their father Jacob in the land of Canaan, they told him all that had happened to them, saying, 30“The man, the lord of the land, spoke harshly with us, and took us for spies of the country. 31“But we said to him, ‘We are honest men; we are not spies. 32‘We are twelve brothers, sons of our father; one is no longer alive, and the youngest is with our father today in the land of Canaan.’ 33“The man, the lord of the land, said to us, ‘By this I will know that you are honest men: leave one of your brothers with me and take grain for the famine of your households, and go.34‘But bring your youngest brother to me that I may know that you are not spies, but honest men. I will give your brother to you, and you may trade in the land.’”
35Now it came about as they were emptying their sacks, that behold, every man’s bundle of money was in his sack; and when they and their father saw their bundles of money, they were dismayed. 36Their father Jacob said to them, “You have bereaved me of my children: Joseph is no more, and Simeon is no more, and you would take Benjamin; all these things are against me.”37Then Reuben spoke to his father, saying, “You may put my two sons to death if I do not bring him back to you; put him in my care, and I will return him to you.” 38But Jacob said, “My son shall not go down with you; for his brother is dead, and he alone is left. If harm should befall him on the journey you are taking, then you will bring my gray hair down to Sheol in sorrow.”