7 Joseph recognized his brothers instantly, but he pretended to be a stranger and spoke harshly to them. "Where are you from?" he demanded. "From the land of Canaan," they replied. "We have come to buy food." 8 Although Joseph recognized his brothers, they didn't recognize him. 9 And he remembered the dreams he'd had about them many years before. He said to them, "You are spies! You have come to see how vulnerable our land has become." 10 "No, my lord!" they exclaimed. "Your servants have simply come to buy food. 11 We are all brothers-members of the same family. We are honest men, sir! We are not spies!" 12 "Yes, you are!" Joseph insisted. "You have come to see how vulnerable our land has become." 13 "Sir," they said, "there are actually twelve of us. We, your servants, are all brothers, sons of a man living in the land of Canaan. Our youngest brother is back there with our father right now, and one of our brothers is no longer with us." 14 But Joseph insisted, "As I said, you are spies! 15 This is how I will test your story. I swear by the life of Pharaoh that you will never leave Egypt unless your youngest brother comes here! 16 One of you must go and get your brother. I'll keep the rest of you here in prison. Then we'll find out whether or not your story is true. By the life of Pharaoh, if it turns out that you don't have a younger brother, then I'll know you are spies." 17 So Joseph put them all in prison for three days. 18 On the third day Joseph said to them, "I am a God-fearing man. If you do as I say, you will live. 19 If you really are honest men, choose one of your brothers to remain in prison. The rest of you may go home with grain for your starving families. 20 But you must bring your youngest brother back to me. This will prove that you are telling the truth, and you will not die." To this they agreed.
Matthew Henry's Commentary on Genesis 42:7-20
Commentary on Genesis 42:7-20
(Read Genesis 42:7-20)
Joseph was hard upon his brethren, not from a spirit of revenge, but to bring them to repentance. Not seeing his brother Benjamin, he suspected that they had made away with him, and he gave them occasion to speak of their father and brother. God, in his providence, sometimes seems harsh with those he loves, and speaks roughly to those for whom yet he has great mercy in store. Joseph settled at last, that one of them should be left, and the rest go home and fetch Benjamin. It was a very encouraging word he said to them, "I fear God;" as if he had said, You may be assured I will do you no wrong; I dare not, for I know there is one higher than I. With those that fear God, we may expect fair dealing.