Genesis 42:18-20

Common English Bible

¹⁸ On the third day, Joseph said to them, “Do this and you will live, for I’m a God-fearing man. ¹⁹ If you are honest men, let one of your brothers stay in prison, and the rest of you, go, take grain back to those in your households who are hungry. ²⁰ But bring your youngest brother back to me so that your words will prove true and you won’t die.”

So they prepared to do this.