Genesis 42:9-14

9And Joseph remembered the dreams that he had dreamt of them; and he said to them, Ye are spies: to see the exposed places of the land ye are come.

10And they said to him, No, my lord; but to buy food are thy servants come.

11We are all one man's sons; we are honest: thy servants are not spies.

12And he said to them, No; but to see the exposed places of the land are ye come.

13And they said, Thy servants were twelve brethren, 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 it that I have spoken to you, saying, Ye are spies.