Genesis 42:10

8And Joseph knew his brethren, but they knew not him.

9And Joseph remembered the dreams which he dreamed of them, and said unto them, Ye are spies; to see the nakedness of the land ye are come.

10And they said unto him, Nay, my lord, but to buy food are thy servants come.

11We are all one man’s sons; we are true men, thy servants are no spies.

12And he said unto them, Nay, but to see the nakedness of the land ye are come.