When we consider our lives before God, we often talk about the necessity of Christ's death for our forgiveness.  He had to die or our death would never die!  The focus on "original sin" is necessary and whenever we fellowship around the Lord's Table we remember His death "until He comes."  It seems like we don't talk as much about original glory.  I think it is easier to talk about original sin because we are more experienced in sin than we are in glory!  We were made for glory!  We were designed to be in perfect relationship with and perfect reflectors of the Holy Creator God.  Sin tarnished the image.  This explains why we are like we are; in other words, this explains why we struggle so much to be what we know deep down we ought to be!  We want to be better looking, have better character, do better things etc but we find that "in us dwells no good thing."  This is why Jesus, the last Adam (see Romans 5) had to both die AND rise from the dead.  His resurrection not only revealed the fact that He is the Son of God and that the Father was satisfied with His work at Calvary, His resurrection conquered death and its effects for every man who believes.  His resurrection body is the first-fruit (proto-type) of what the restored image looks like.  If you want to know what the resurrection body will be like for believers, read about Jesus' post-resurrection appearances.  I think you will like it!  So, Jesus not only had to die, He HAD to rise from the dead to restore us to God's intention...for His glory and our eternal good.  Praise Him!!