Genesis 42:33
And the man, the lord of the country, said to us, By this 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 depart:And the man, the lord of the country, said to us, By this 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 depart: