Identification with Christ or positional truth, retroactive and current, describes the believer's relationship and identity with Christ. Furthermore, he wants to live the resurrection kind of life in the present time, and looks forward to physical resurrection in the future. Paul presses on toward them. Preoccupation with the past only distracts him from God's grace plan. It originally meant to be drawn up in a line.
Believers are kingdom citizens.
Their future physical resurrection to be just like Christ is certain.