It was applied to social life by various Church Synods (such as Elvira in 306, Clermont in 535, Orleans in 538, the Lateran Councils of 1179 and 1215) with their succession of repressive measures and harassments directed against the Jews. It culminated under the influence of blood libels in the late Middle Ages (Andreas of Ryn p. 1462, Simon of Trient 1475) [29], and in Modern Times (Tisza-Esslar, Korfu, Xanten, Polna, Konitz) - down to the days of the Third Reich. By using the very pattern of a Collective Guilt, the Christian projected on to the Jew the frailties common to all human beings. This mechanism enabled the Christian to see his own weakness reflected in the Jew so that by persecuting the Jew, moreover by exterminating him, the Christian could obliterate his own image as a sinner, and cleanse his conscience from the burden of guilt. These patterns of thought and conduct, these models of generalization, projection and prejudice that originally were established by Christianity with respect to the Jews - to what extent were they now employed by the Nazi regime against Humanity, as well as against the Church itself whenever the racial antisemites attacked its ethical Judaic basis? <XIX> B. The second group of questions concerns the problems as to whether the survival of the Jews on the one hand, and their ultimate Christianization on the other, are both indispensable to Christianity. Since the promise made to the Jews in the Old Testament (Gen. 22 .18; II Sam. 7. 12; Isaiah 7.14), will be fulfilled or perhaps superseded by those of the New Testament (Rom. 9-11) when the Jews return in penitence and acknowledge Jesus as the Messiah, it seems that the Christian concern for the fate of the Jews, even in the days of the holocaust, is unavoidably accompanied by an interest in his salvation. Alas, his salvation is conceived by the Christian in terms that are unacceptable for the Jew as long as he wishes to adhere to Judaism as a religion, a people and an unfulfilled eschatology.