This can be stated in active form. Alternate translation: "leave one of your brothers here in prison" (See: [[rc://en/ta/man/translate/figs-activepassive]])
Here "you" is plural and refers to all the brothers that will not stay in prison. Alternate translation: "but the rest of you go" (See: [[rc://en/ta/man/translate/figs-you]])
Here "houses" stands for families. Alternate translation: "carry grain home to help your family during this famine" (See: [[rc://en/ta/man/translate/figs-metonymy]])