Genesis 42:6-17

Now 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. When 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.” But Joseph had recognized his brothers, although they did not recognize him. Joseph 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.” Then they said to him, “No, my lord, but your servants have come to buy food. We are all sons of one man; we are honest men, your servants are not spies.” Yet he said to them, “No, but you have come to look at the undefended parts of our land!” But 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.” Joseph said to them, “It is as I said to you, you are spies; by this you will be tested: by the life of Pharaoh, you shall not go from this place unless your youngest brother comes here! 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.” So he put them all together in prison for three days.