Genesis 42:21-23King James Version (KJV)
21 And they said one to another, We are verily guilty concerning our brother, in that we saw the anguish of his soul, when he besought us, and we would not hear; therefore is this distress come upon us.
22 And Reuben answered them, saying, Spake I not unto you, saying, Do not sin against the child; and ye would not hear? therefore, behold, also his blood is required.
23 And they knew not that Joseph understood them; for he spake unto them by an interpreter.