In my Niv bible under the heading "The cost of Following Jesus" a disciple who  wants  to follow Jesus says, (Matthew 8 v 21)," Lord first let me go and bury my father." But Jesus told him,"follow me,and let the dead bury their own dead." Does this mean that this man who wants to bury his father is dead because he has not been born again? and if so, is this statement of  Jesus pointing to the future judgement in Revelation 20 v 6 regarding the phrase"The second death has no power over them" ?