15 And this is how you will be tested: As surely as Pharaoh lives, you will not leave this place unless your youngest brother comes here. 16 Send one of your number to get your brother; the rest of you will be kept in prison, so that your words may be tested to see if you are telling the truth. If you are not, then as surely as Pharaoh lives, you are spies!"
15 Hereby ye shall be proved: By the life of Pharaoh ye shall not go forth hence, except your youngest brother come hither. 16 Send one of you, and let him fetch your brother, and ye shall be kept in prison, that your words may be proved, whether there be any truth in you: or else by the life of Pharaoh surely ye are spies.
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 confined, that your words may be tested, whether there is truth in you. Or else, by the life of Pharaoh, surely you are spies."
15 This is how I'll test you. As Pharaoh lives, you're not going to leave this place until your younger brother comes here. 16 Send one of you to get your brother while the rest of you stay here in jail. We'll see if you're telling the truth or not. As Pharaoh lives, I say you're spies."
15 In this manner you shall be tested: By the life of Pharaoh, you shall not leave this place unless your youngest brother comes here. 16 Send one of you, and let him bring your brother; and you shall be kept in prison, that your words may be tested to see whether there is any truth in you; or else, by the life of Pharaoh, surely 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."
Matthew Henry's Commentary on Genesis 42:15-16
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.