“Then comes the end, when He delivers the kingdom to God the Father, when He puts an end to all rule and all authority and power. For He must reign till He has put all enemies under His feet. The last enemy that will be destroyed is death.” (1Cor. 15:24-26)
Paul said the end comes when Jesus delivers the kingdom to God the Father. When will that be? When Jesus puts an end to all earthly rule, authority and power. When will that be? When death is destroyed.
After the resurrection (the theme of 1Cor. 15) comes the end! If the end comes after the resurrection, doesn’t that mean there’s nothing more that will happen on earth (until the new earth) or it wouldn’t be the end? Until then, Jesus must reign till He has put all enemies under His feet!