The apostle also drew a lesson from two uniquely representative men: Adam and Christ. Adam derived life from another, God; but Christ is Himself the fountain of life. Adam was the first man in the old creation, and, like him, all of his sons die physically. Christ is the first man in the new creation, and, like Him, all of His sons will live physically (cf. Romans 5:12-19). Obviously Paul was referring to believers only as sons of Christ. Both Adam and Jesus were men. Therefore our resurrection will be a human resurrection, not some "spiritual" type of resurrection. Physical resurrection is as inevitable for the sons of Jesus Christ (believers) as physical death is for the sons of Adam (humans). [source][source][source]