For they that are after the flesh do mind the things of the flesh; but they that are after the Spirit the things of the Spirit.
All Commentaries on Romans 8:5 Go To Romans 8
John Chrysostom
AD 407
This is not meant to be a disparagement of the flesh. For as long as it keeps its place nothing untoward will happen. But if we let it have its own way in everything and allow the flesh to get out of hand, it will rise up against the soul and then destroy and corrupt everything. This is not because of its own nature but because it is out of proportion, and disorder will ensue.