Joseph keeps Simeon as hostage while other brothers return
Genesis 42: 19-25
19 If you be peaceable men, let one of your brethren be bound in prison: and go ye your ways, and carry the corn that you have bought, unto your houses. 20 And bring your youngest brother to me, that I may find your words to be true, and you may not die. They did as he had said...
25 And taking Simeon, and binding him in their presence, he commanded his servants to fill their sacks with wheat, and to put every man’s money again in their sacks, and to give them besides provisions for the way: and they did so.