In Mormonism, Outer Darkness is the final state of those who completely reject God after having received a full knowledge of him. It is reserved for “sons of perdition” — most often described as Satan, his followers, and those who knowingly deny Christ after receiving a sure witness of his truth.
Most Mormons believe that very few people will end up in Outer Darkness. Because all people will have the chance to hear and accept the LDS gospel in the spirit world after death, nearly everyone is expected to inherit at least one degree of heavenly glory. Also see: Son of Perdition.
Biblical Christianity presents hell as the eternal punishment for all who die in their sins apart from Christ (Matthew 25:46; John 8:24). The Bible does not describe second chances, temporary spirit worlds, or multiple levels of glory. Instead, it speaks of only two eternal outcomes: eternal life with God through faith in Christ, or eternal separation from him in hell (2 Thessalonians 1:9; Revelation 20:15).