Genesis Chapter 42 Verse 15Hereby ye shall be proved: By the life of Pharaoh ye shall not go forth hence, except your youngest brother come hither.

And the sons of Israel came to buy [corn] among those that came: for the famine was in the land of Canaan.

And Joseph [was] the governor over the land, [and] he [it was] that sold to all the people of the land: and Joseph's brethren came, and bowed down themselves before him [with] their faces to the earth.

And Joseph saw his brethren, and he knew them, but made himself strange unto them, and spake roughly unto them; and he said unto them, Whence come ye? And they said, From the land of Canaan to buy food.

And Joseph knew his brethren, but they knew not him.

And Joseph remembered the dreams which he dreamed of them, and said unto them, Ye [are] spies; to see the nakedness of the land ye are come.

And they said unto him, Nay, my lord, but to buy food are thy servants come.

We [are] all one man's sons; we [are] true [men], thy servants are no spies.

And he said unto them, Nay, but to see the nakedness of the land ye are come.

And they said, Thy servants [are] twelve brethren, the sons of one man in the land of Canaan; and, behold, the youngest [is] this day with our father, and one [is] not.

And Joseph said unto them, That [is it] that I spake unto you, saying, Ye [are] spies:

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.

And he put them all together into ward three days.

And Joseph said unto them the third day, This do, and live; [for] I fear God:

If ye [be] true [men], let one of your brethren be bound in the house of your prison: go ye, carry corn for the famine of your houses:

But bring your youngest brother unto me; so shall your words be verified, and ye shall not die. And they did so.

And they said one to another, We [are] verily guilty concerning our brother, in that we saw the anguish of his soul, when he besought us, and we would not hear; therefore is this distress come upon us.

And Reuben answered them, saying, Spake I not unto you, saying, Do not sin against the child; and ye would not hear? therefore, behold, also his blood is required.

And they knew not that Joseph understood [them]; for he spake unto them by an interpreter.

And he turned himself about from them, and wept; and returned to them again, and communed with them, and took from them Simeon, and bound him before their eyes.

Then Joseph commanded to fill their sacks with corn, and to restore every man's money into his sack, and to give them provision for the way: and thus did he unto them.

The Book of Genesis, Chapter 42, Verse 15