Christians believe that Jesus will one day return to Earth, to judge everyone, and to set up God’s Kingdom and that, at this time, all Christian believers will come back to life to share in that kingdom.
The usual interpretation of the Second Coming is that it will be a resurrection free from the limitations of the body, rather than a coming back to life of the body itself. (This is discussed in the Bible at 1 Corinthians Chapter 15 Verses 35-53.)