Did Martin Luther add the word "alone" to Romans 3:28?

 

Luther gives clarification as to his translation of Romans 3:28 in his Open Letter on Translation:

“I know very well that in Romans 3 the word solum is not in the Greek or Latin text — the papists did not have to teach me that. It is fact that the letters s-o-l-a are not there. And these blockheads stare at them like cows at a new gate, while at the same time they do not recognize that it conveys the sense of the text -- if the translation is to be clear and vigorous [klar und gewaltiglich], it belongs there. I wanted to speak German, not Latin or Greek, since it was German I had set about to speak in the translation. So much for translating and the nature of language. However, I was not depending upon or following the nature of the languages alone when I inserted the word solum in Romans 3. The text itself, and Saint Paul's meaning, urgently require and demand it. For in that passage he is dealing with the main point of Christian doctrine, namely, that we are justified by faith in Christ without any works of the Law. Paul excludes all works so completely as to say that the works of the Law, though it is God's law and word, do not aid us in justification. Using Abraham as an example, he argues that Abraham was so justified without works that even the highest work, which had been commanded by God, over and above all others, namely circumcision, did not aid him in justification. Rather, Abraham was justified without circumcision and without any works, but by faith, as he says in Chapter 4: "If Abraham were justified by works, he may boast, but not before God." So, when all works are so completely rejected — which must mean faith alone justifies — whoever would speak plainly and clearly about this rejection of works will have to say "Faith alone justifies and not works." The matter itself and the nature of language requires it.” (http://www.bible-researcher.com/luther01.html)

Furthermore, Joseph Fitzmyer points out in his commentary on Romans (pgs. 360-361) that many other people added the word "alone" in their commentaries and exposition on the book of Romans. Some examples would Basil, John Chrysostom, and Thomas Aquinas.