The document discusses what life will be like when Jesus returns and creates a new heaven and new earth. It summarizes that believers will be: 1) United in hope as they await Jesus' return and the fulfillment of God's promises. 2) United in the resurrection, as both the living and dead in Christ will be transformed and given incorruptible bodies to be with Jesus forever. 3) United in restoration, as God will restore creation to its original perfect state without sin, death, or suffering, and all people will live in peace.