More than fifty years after it ended, the Holocaust continues to leave survivors and their descendants, as well as historians, philosophers, and theologians, searching for words to convey the enormity of that event. Efforts to express its realities and its impact on successive generations often stretch language to the breaking point--or to the point of silence. Words whose meaning was contested before the Holocaust prove even more fragile in its wake.

David Patterson and John K. Roth identify three such "after-words": forgiveness, reconciliation, and justice. These words, though...