Then the man, the lord of the country, said to us, "By this I will know that you are honest men: Leave one of your brothers here with me, take food for the famine of your households, and be gone.
Genesis 42:33
Surrounding context
42:32 We are twelve brothers, sons of our father; one is no more, and the youngest is with our father this day in the land of Canaan.'
42:33 Then the man, the lord of the country, said to us, "By this I will know that you are honest men: Leave one of your brothers here with me, take food for the famine of your households, and be gone.
42:34 And bring your youngest brother to me; so I shall know that you are not spies, but that you are honest men. I will grant your brother to you, and you may trade in the land."'