When justice is done

The abstract noun "justice" can be translated as a noun phrase. These words can be translated in active form. Alternate translation: "When rulers do what is just" (See: rc://en/ta/man/jit/figs-abstractnouns and rc://en/ta/man/jit/figs-activepassive)

workers of iniquity

"those who do evil" or "evildoers"