The Roman Teaching of the Cross in Light of the Bible

The Bible teaches the all-sufficient redemptive work of the Cross of Jesus Christ in behalf of His people.  The Roman Catholic teaching of the Cross is that  it is "not exclusively" the "cause of our redemption."  Reformed people profess the life and death of Christ alone as the sole grounds for how someone is right with God through God's dear Son alone through the Holy Spirit.  Jesus said on the Cross "It is finished" that means "It is paid in full."  The Cross paid for every curse and every debt of a Christian believer.  

Christ’s redemptive activity finds its apogee in the death of sacrifice on the cross. On this account it is by excellence but not exclusively the efficient cause of our redemption....No one can be just to whom the merits of Christ’s passion have not been communicated. It is a fundamental doctrine of St. Paul that salvation can be acquired only by the grace merited by Christ (Ludwig Ott, Fundamentals of Catholic Dogma (Rockford: Tan, 1974), pp. 185, 190).

There is the necessity of purgatory.  That is, Rome adds this among other things to the Cross of Jesus Christ.  If a Protestant denies purgatory, they are cursed because of the Council of Trent.  Let us deeply ponder what is being told to us.  For Rome says:

If anyone says that after the reception of the grace of justification the guilt is so remitted and the debt of eternal punishment so blotted out to every repentant sinner, that no debt of temporal punishment remains to be discharged either in this world or in purgatory before the gates of heaven can be opened, let him be anathema (The Canons and Decrees of the Council of Trent, in Philip Schaff, The Creeds of Christendom (Grand Rapids: Baker, 1919 ed.), pp. 214, 46).

The Cross of Jesus takes away every sinful debt and punishment.  There is no spiritual or redemptive punishment left because of the spiritual application of the fulfillment of divine satisfaction at the Cross.