Genesis 42:21,22

‘And they said to one another, “We are truly guilty in respect of our brother, for we saw the distress of his soul when he pleaded with us and we would not listen. This is why this distress has come on us.” And Reuben answered them saying, “Did I not speak to you saying, ‘Do not sin against the child', but you would not listen? See, that is why his blood is now required of us.” '

This living nightmare that is happening to them brings to their minds the day when their younger brother had pleaded for his life and they had refused to listen. At least it demonstrates that they continually carried it on their consciences. Now they realise that judgment for what they had done is coming on them. And Reuben bitterly forces it home. ‘I warned you,' he says. ‘And now his blood is being required of us.' They all thought that by now Joseph was dead.