I find this paragraph from David Bahnsen–Dr. Bahnsen’s son– fascinating:
Greg Bahnsen was a person who had very, very few enemies in the unsaved world. Then correspondence between dad and Gordon Stein may have been an exception, but the treatment he received from scores and scores of ideological opponents on the OTHER side of the antithesis was nearly always filled with respect, collegiality, and poise. Frankly, the vast majority of correspondence I read with non-Reformed Christians was often the same – even if the subject of the correspondence was disagreement over a matter of ideology – respect, collegiality, warmth. The ugly stuff was always from those who were closer and closer to his various distinctives. I couldn’t explain this to you if I tried because no one has ever explained it to me. But when I talk about the way Dallas Willard, Richard Mouw, Father Neuhaus, and others interacted with him, not to mention dozens of unsaved intellectuals, it was like a different world when you start reading the correspondence with people in his own “camp”. I take that at the very least as a testimony to his scholarly caliber and his own respectful demeanor.