Death in the Bible represents spiritual death, or the destruction of everything that is good and all true beliefs in someone. This happens when people confirm themselves in evil and choose hell. And the more they turn away from the Lord - the source of life - the more dead they are. There is also a sort of spiritual death in the opposite sense: to go to heaven we must let go of our desire to live from and for ourselves, must let that aspect of ourselves die so that we don't start to believe that we can also decide what is good and evil, as Adam & Eve did. This is the death Jesus meant when he said to the disciples, "he who loses his life for My sake, shall find it." The natural physical death of the body, meanwhile, is really just a passage into spiritual life, and is, for people who love the Lord and their fellow people, a rebirth into the true life of heaven. There are also a few cases in the Bible where it is said the "nothing will die" or that things will "never die." This means that love and truth will not die even if people do, because love and truth come from the Lord and are connected to Him.