There is a threefold death as the result of sin.
I. Bodily death. The common portion of man naturally, as a consequence of sin, is death (Hbr 9:27).
II. Spiritual death. Sin has alienated man from God, hence man is dead in trespasses and sins (Eph 2:1).
There are three illustrations given in the New Testament of spiritual death.
1. The prodigal was dead, as long as he was separated from his father (Luk 15:24).
2. The woman who lives in pleasure is dead, as long as she continues in a course of worldliness (1Ti 5:6).
3. Those who have a name to live, but who have not been quickened by the Holy Spirit, are dead in a spiritual sense (Rev 3:1).
III. Eternal death. "The second death" is eternal separation from God, from all that He is, and from all that He has to give (Rev 20:14).