I caution against referring to “carnal” and “spiritual” as rigid categories or classes of Christians. The idea of a distinctive class or category implies a strict line of demarcation between one group of believers and another. It suggests there are readily identifiable stages in the Christian life into which one may enter if certain things are done or out of which one may fall if other things are done. Sanctification, however, is far too fluid for such strict categorization. In other words, sanctification is a process which, because of its constantly dynamic and progressive nature, defies rigid classifications.
Sam Storms