Genesis 42:16
Send one of your number to get your brother, and the rest of you will be kept in prison, so that your words may be tested to see if you are true; if not, by the life of Pharaoh, your purpose is certainly secret.
Genesis 42:11
We are all one man's sons, we are true men; we have not come with any secret purpose.
Treasury of Scripture Knowledge
Summary
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.
Kept in prison
General references
Bible References
Kept in prison
Genesis 42:19
If you are true men, let one of you be kept in prison, while you go and take grain for the needs of your families;
General references
Genesis 44:2
And put my cup, my silver cup, in the youngest one's bag, with his money. So he did as Joseph said.