Genesis 42:3-8

Ten of Joseph’s brothers went down to Egypt to get food. Jacob didn’t send Joseph’s brother Benjamin with them; he was afraid that something bad might happen to him. So Israel’s sons joined everyone else that was going to Egypt to buy food, for Canaan, too, was hit hard by the famine. Joseph was running the country; he was the one who gave out rations to all the people. When Joseph’s brothers arrived, they treated him with honor, bowing to him. Joseph recognized them immediately, but treated them as strangers and spoke roughly to them. He said, “Where do you come from?” “From Canaan,” they said. “We’ve come to buy food.” Joseph knew who they were, but they didn’t know who he was.