REFUTING LUTHER'S HERESY ON JUSTIFICATION [Intro]

A jolly good fellow wrote: 

"I would like to ask, Father. How do we Catholics refute Luther’s heresy on justification?" 

While to a Catholic, this remains, and will ever remain, a fundamental question, the Arch-Ecumenist; Apostate, and Papal impotor, Bergoglio, said Aboard the papal plane, Jun 26, 2016  that "today Lutherans and Catholics, Protestants, all of us agree on the doctrine of justification". To any informed Catholic common sense, it is obvious that such an affirmative statement can only come from one in the ranks of the "most pernicious of the adversaries of the Church" as Pope St. Pius X describes modernists.

For the ease of reading and assimilation, the response to this fundamental question posed by this fellow shall be posted in a series of short entries. 

First and foremost, let us briefly note that , to Luther and his Protestant cohorts,  the sinner, becomes justified by means of Faith, or confidence in the promises of Jesus Christ, and believing with an infallible certainty, that he is justified;  for the justice of Jesus Christ is extrinsically imputed to him, by which his sins are not indeed concealed, but covered, and are thus not imputed to him, and they found this dogma on the words of David: “Blessed are they whose iniquities are forgiven, and whose sins are covered. Blessed is the man to whom the Lord hath not imputed sin, and in whose spirit there is no guile” (Psalm 31: 1, 2).

It is no doubt however, that the Catholic Church, condemns and anathematizes the doctrine, that as man is absolved from his sins, by Faith alone, that he is justified. The 14th Canon of the sixth Session of the  Council of Trent leaves do room for doubt when it states 

"if anyone says that man is absolved from his sins and justified because he firmly believes that he is absolved and justified, or that no one is truly justified except him who believes himself justified, and that by his faith alone absolution and justification are effected, let him be anathema". 

Now, besides, the Church of Christ, the pillar and ground of truth, teaches, that in order that the sinner should become justified, it is necessary that he be disposed to receive Grace. Faith is necessary for this disposition, but Faith alone is not sufficient. The Council of Trent (Sess. vi, cap. 6), says, that acts of hope, of love, of sorrow, and a purpose of amendment are also necessary, and God then finding the sinner thus disposed, gives him gratuitously his Grace, or intrinsic justice (ibid. cap. 7), which remits to him his sins, and sanctifies him. 

Distorting quotes from the Scriptures, like the father of lies, the Protestants put forth a set of arguments to establish their heresy as having Biblical foundation. The unmasking of their pretentions, as has been done by our Fathers in the faith, shall be the focus of succeeding articles.