This can be translated in active form. Alternate translation: "for which you must distinguish between" (See: [[rc://en/ta/man/jit/figs-activepassive]])
Animals that God declared to be unfit for the people to touch or eat are spoken of as if they were physically unclean, and those which he declared to be acceptable for the people to touch and eat are spoken of as if they were physically clean. (See: [[rc://en/ta/man/jit/figs-metaphor]])
This can be translated in active form. Alternate translation: "that you may eat ... that you may not eat" (See: [[rc://en/ta/man/jit/figs-activepassive]])