Jesus died voluntarily at the cross — He had authority to lay down his life in death and take it up again in resurrection. He pioneered resurrection as his body is glorious, immortal, incorruptible and imperishable. All human bodies are subject to death. But Jesus' Glorified body is not subject to death. By incarnation He bore the likeness of a deathly human body. But in Resurrection his body is completely glorious, imperishable and incorruptible. Thus he is the firstborn from the dead. He pioneered a supernatural glorified human body which the Saints will be transformed into when he appears in the air with the voice of the archangel and the last trumpet.