Genesis 42:15-25

15 By this you shall be tested: by the life of Pharaoh, you shall not go from this place unless your youngest brother comes here.
16 Send one of you, and let him bring your brother, while you remain in prison, that your words may be tested, whether there is truth in you; or else, by the life of Pharaoh, surely you are spies."
17 And he put them all together in prison for three days.
18 On the third day Joseph said to them, "Do this and you will live, for I fear God:
19 if you are honest men, let one of your brothers remain confined in your prison, and let the rest go and carry grain for the famine of your households,
20 and bring your youngest brother to me; so your words will be verified, and you shall not die." And they did so.
21 Then they said to one another, "In truth we are guilty concerning our brother, in that we saw the distress of his soul, when he besought us and we would not listen; therefore is this distress come upon us."
22 And Reuben answered them, "Did I not tell you not to sin against the lad? But you would not listen. So now there comes a reckoning for his blood."
23 They did not know that Joseph understood them, for there was an interpreter between them.
24 Then he turned away from them and wept; and he returned to them and spoke to them. And he took Simeon from them and bound him before their eyes.
25 And Joseph gave orders to fill their bags with grain, and to replace every man's money in his sack, and to give them provisions for the journey. This was done for them.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.