Genesis 42:9-13

And Joseph remembered the dreams which he had about them, and he said to them, “You are spies; you have come to look at the undefended parts of our land.”

And 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.”