Second Coming
The Second Coming (sometimes called the Second Advent or the Parousia) is a Christian and Islamic belief regarding the future (or past) return of Jesus Christ after his ascension to heaven about two thousand years ago. The idea is based on messianic prophecies and is part of most Christian eschatologies.
Catholic theology
At the second coming of Christ at the end of time, all who have died will be resurrected bodily from the dead for the Last Judgement, whereupon Jesus will fully establish the Kingdom of God in fulfillment of scriptural prophecies.