On the question of the Sacrament, the theory of the “Sacramentarians” came more and more to seem to him the true one. Owing, however, to his timidity and the fear in which he stood of Luther, he did not dare to speak out. The “_Loci_” of 1535 is remarkably obscure in its teaching concerning the Sacrament, whilst, in a letter to Camerarius of the same year, he speaks of Luther’s view as “alien” to his own, which, however, he refuses to explain.[1170] Later the Cologne scheme of 1543 in which Bucer, to Luther’s great annoyance, evaded the question of the Real Presence, obtained Melanchthon’s approval. When, in 1540, Melanchthon made public a new edition of the Confession of Augsburg (“_Confessio variata_”), containing alterations of greater import than those of the previous editions, the new wording of the 10th Article was “Melanchthonian” in the sense that it failed to exclude “the doctrine either of Melanchthon, or of Bucer, or of Calvin on the Supper.”[1171] It was “Melanchthonian” also in that elasticity and ambiguity which has since become the model for so many Protestant formularies. In order to secure a certain outward unity it became usual to avoid any explicitness which might affright such as happened to have scruples. A Melanchthonian character was thus imparted to the theology which, with Melanchthon himself as leader, was to guard the heritage of Luther. _Points of Accord between Melanchthon and Luther._ Melanchthon’s religious character naturally exhibits many points of contact with that of Luther. Only to a limited extent, however, does this hold good of the “inward terrors.” Attempts have been made to prove that, like Luther, his more youthful friend believed he had experienced within him the salutary working of the new doctrine of Justification.[1172] But, though, in his “_Apologia_” to the Augsburg Confession and in other writings, he extols, as we have seen, this doctrine as alone capable of imparting strength and consolation in times of severe anxiety of conscience and spiritual desolation, and though he speaks of the “_certamina conscientiæ_,” and of the assurance of salvation in exactly the same way that Luther does, still this is no proof of his having experienced anything of the sort himself. The statements, which might be adduced in plenty from his private letters, lag very far behind Luther’s characteristic assurances of his own experience.