The first human being, Adam, sinned against God by disobeying him and then set out to be his own autonomous, free agent. Adam's rebellion brought condemnation on all of his offspring, including you and I. Christ, conversely, by obeying God, even to the point of going to the cross, brought reconciliation, forgiveness, justification, and eternal life to those who trust in him. Whereas Adam, fell short of God's glory, as the first man, Christ, who was incarnated, was God's glory, and has restored what real humanity was intended. By failing to understand the first Adam only leads to failure to understand the last Adam.