Genesis 42:8 in the King James Version
And Joseph knew his brethren, but they knew not him.
Context
7 Joseph saw his brothers, and he recognized them, but acted like a stranger to them, and spoke roughly with them. He said to them, “Where did you come from?” They said, “From the land of Canaan, to buy food.”
8 Joseph recognized his brothers, but they didn’t recognize him.
9 Joseph remembered the dreams which he dreamed about them, and said to them, “You are spies! You have come to see the nakedness of the land.”