Being born again the spirit of man is regenerated and made one with the Holy Spirit. This is the seat of salvation, but it is not all of salvation. Salvation is for the whole man, not merely the spirit. The Soul and the Body are indeed part of salvation.
Each of the three components of man has a distinct experience of the salvation process. The three individually differ as to timing, duration, means and result. These differences are expressions of the individual character of the spirit, soul and body, not differences in degrees or type of salvation itself.
To be continued. . .
