Genesis 42:7-20

7And Joseph saw his brethren, and he knew them, but made himself strange to them, and spoke roughly to them; and he said to them, Where do you come from? And they said, From the land of Canaan to buy food.1 8And Joseph knew his brethren, but they knew not him. 9And Joseph remembered the dreams which he dreamed of them, and said to them, Ye are spies; to see the nakedness of the land have ye come. 10And they said to him, No, my lord, but to buy food have thy servants come. 11We are all one man’s sons; we are honest men, thy servants are no spies. 12And he said to them, No, but to see the nakedness of the land have ye come. 13And they said, Thy servants are twelve brethren, the sons of one man in the land of Canaan; and, behold, the youngest is this day with our father, and one is not. 14And Joseph said to them, That is what I spoke to you, saying, Ye are spies: 15By this ye shall be proved: By the life of Pharaoh ye shall not go forth from here, except your youngest brother shall come here. 16Send one of you, and let him bring your brother, and ye shall be kept in prison, that your words may be proved, whether there is any truth in you: or else by the life of Pharaoh surely ye are spies.2 17And he put them all together into prison three days.3 18And Joseph said to them the third day, This do, and live; for I fear God: 19If ye are honest men, let one of your brethren be bound in the house of your prison: go ye, carry grain for the famine of your houses: 20But bring your youngest brother to me; so shall your words be verified, and ye shall not die. And they did so.