Genesis 42:32 KJV

30The man, who is the lord of the land, spake roughly to us, and took us for spies of the country.

31And we said unto him, We are true men; we are no spies:

32We be twelve brethren, sons of our father; one is not, and the youngest is this day with our father in the land of Canaan.

33And the man, the lord of the country, said unto us, Hereby shall I know that ye are true men; leave one of your brethren here with me, and take food for the famine of your households, and be gone:

34And bring your youngest brother unto me: then shall I know that ye are no spies, but that ye are true men: so will I deliver you your brother, and ye shall traffick in the land.