Genesis 42:9-17

9Joseph remembered his dreams about them and said to them, “You are spies. You have come to see the weakness of the land.”

10“No, my lord. Your servants have come to buy food,” they said.

11“We are all sons of one man. We are honest; your servants are not spies.”

12“No,” he said to them. “You have come to see the weakness of the land.”

13But they replied, “We, your servants, were twelve brothers, the sons of one man in the land of Canaan. The youngest is now with our father, and one is no longer living.”

14Then Joseph said to them, “I have spoken: ‘You are spies!’

15This is how you will be tested: As surely as Pharaoh lives, you will not leave this place unless your youngest brother comes here.

16Send one from among you to get your brother. The rest of you will be imprisoned so that your words can be tested to see if they are true. If they are not, then as surely as Pharaoh lives, you are spies!”

17So Joseph imprisoned them together for three days.