Send one of you, and let him fetch your brother, and you shall be kept in prison, that your words may be proved, whether there be any truth in you: or else by the life of Pharaoh surely you are spies.
And Joseph saw his brothers, and he knew them, but did not reveal himself 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.