[yehi]

the benefit of languages with cases is that you can switch the order of the sentence without changing the meaning. In those languages I can say "the dog bit the person" and "the (accusative) person bit the (nominative) dog" and it would not change the meaning of the sentence but it would allow me to emphasize one object more.

[TulliusCicero]

You can still do that in English though: the dog bit the person, the person was bit by the dog

[nicky0]

The person, the dog bit.

- Yoda