Genesis 42:11

7 And when Joseph saw his brothers, he recognized them, but he treated them as strangers and spoke harshly to them. “Where have you come from?” he asked. “From the land of Canaan,” they replied. “We are here to buy food.”

8 Although Joseph recognized his brothers, they did not recognize him.

9 Joseph remembered his dreams about them and said, “You are spies! You have come to see if our land is vulnerable.”

10 “Not so, my lord,” they replied. “Your servants have come to buy food.

11 We are all sons of one man. Your servants are honest men, not spies.”

12 “No,” he told them. “You have come to see if our land is vulnerable.”

13 But they answered, “Your servants are twelve brothers, the sons of one man in the land of Canaan. The youngest is now with our father, and one is no more.”

14 Then Joseph declared, “Just as I said, you are spies!

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

Read all of Genesis 42