Eternity
People were created to exist forever. Heaven and hell are real places of eternal existence; therefore, every person will either exist eternally separated from God by sin in hell or eternally with God in heaven through forgiveness and salvation. Physical death seals the eternal destiny of each person.
John 3:15-18; Romans 6:23; Matthew 25:41,46; John 5:24, 28-29; Hebrew 9:27-28