The Bible says...

"For the wages of sin is death; but the gift of God is eternal life through Jesus Christ our Lord." Romans 6:23

When man chose to disobey God, the result was death.

The basic meaning of death is separation. The Bible teaches that there are three types of death, or separation, that result from sin.

Spiritual death separates a person from the life of God...

"And you hath he quickened, who were dead in trespasses and sins" Ephesians 2:1

Physical death separates a person's soul from his or her body...

"And as it is appointed unto men once to die, but after this the judgment" Hebrews 9:27

Eternal death separates a person, both soul and body from God forever in Hell...

"And whosoever was not found written in the book of life was cast into the lake of fire." Revelation 20:15