Thoughts on the Body of Christ
Through faith and baptism, we are incorporated into the Body of Christ. The members of the Church form Christ's Body. Christ lives now and He lives forever. Therefore if we, God willing, persevere until the end and die as members of His body, we will live forever.
Because it seems our salvation is not something like a label on our shirts saying "Heaven: Admit One". Rather, its something more intrinsic.
Some have said that God condemns no person to hell. A person may, through his actions, choose to become one with Christ or choose to cut himself off from Christ's body.
If choosing to cut oneself off, he dies. Just like an amputated leg. Or a severed vine.
John 15:4-6 (NAB)
"4 Remain in me, as I remain in you. Just as a branch cannot bear fruit on its own unless it remains on the vine, so neither can you unless you remain in me.
5 I am the vine, you are the branches. Whoever remains in me and I in him will bear much fruit, because without me you can do nothing.
6 Anyone who does not remain in me will be thrown out like a branch and wither; people will gather them and throw them into a fire and they will be burned. "
But if we remain one with Him, we live forever.
John 11:25-26 (NAB):
"25 Jesus told her, "I am the resurrection and the life; whoever believes in me, even if he dies, will live,
26 and everyone who lives and believes in me will never die. Do you believe this?" "
"even if he dies" ... "will never die"
"Do you believe this?"