Hebrews chapter 9 talks about man dying once. In Matthew 9 Jesus intervenes and raises a dead child back to life. Lazarus, the widow's son in Luke 7, and the widow's son in 1 Kings 17 are other examples of God's intervention to resurrect from the dead. Scripture does not tell us a lot about our lives after the resurrection, but it does clearly support the concept of a resurrection. All four gospels discuss Christ's resurrection from the dead.
Many liberal scholars attempt to do away with the resurrection.
Acts 1 discusses Christ's ascension and his promised return. Christopher Reeves, the movie actor, would die quickly if anyone were to turn his ventilator off. Most Christian bioethicists do not hold to this position. The Christian's view of eternal life differs markedly from the rational secularist, and this difference does impinge on this perspective. If Tom and Sarah leave Belinda on the list someone else may not get a heart, and die.