Genesis 42:18-24

Now Joseph said to them on the third day, “Do this and [you may] live, for I fear God: if you are honest men, let one of your brothers be confined in your [place here in] prison; but as for the rest of you, go, carry grain for the famine in your households, but bring your youngest brother to me, so your words will be verified and you will not die.” And they did so. And they said to one another, “Truly we are guilty regarding our brother [Joseph], because we saw the distress and anguish of his soul when he pleaded with us [to let him go], yet we would not listen [to his cry]; so this distress and anguish has come on us.” Reuben answered them, “Did I not tell you, ‘Do not sin against the boy’; and you would not listen? Now the accounting for his blood is required [of us for we are guilty of his death].” They did not know that Joseph understood [their conversation], because he spoke to them through an interpreter. He turned away from his brothers and [left the room and] wept; then he returned and talked with them, and took Simeon from them and bound him in front of them [to be kept as a hostage in Egypt].