And 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:
Genesis 42:15
by this ye are proved: Pharaoh liveth! if ye go out from this -- except by your young brother coming hither;
Genesis 42:19
if ye [are] right men, let one of your brethren be bound in the house of your ward, and ye, go, carry in corn [for] the famine of your houses,
Genesis 42:20
and your young brother ye bring unto me, and your words are established, and ye die not;' and they do so.