Criticism has attempted to derive first one and then the other of the two from its fellow,--thus, in effect, stultifying itself. Finally Dr. Holtzmann, in his _Kritik der Epheser-und Kolosserbriefe_,[11] undertook to show that each epistle was in turn dependent on the other. There is, Holtzmann says, a Pauline nucleus hidden in Colossians, which he has himself extracted. By its aid some ecclesiastic of genius in the second century composed the Ephesian epistle. He then returned to the brief Colossian writing of St Paul, and worked it up, with his own Ephesian composition lying before him, into our existing epistle to the Colossians. This complicated and too ingenious hypothesis has not satisfied any one except its author, and need not detain us here. But Holtzmann has at any rate made good, against his predecessors on the negative side, the unity of origin of the two canonical epistles, the fact that they proceed from one mint and coinage. They are _twin_ epistles, the offspring of a single birth in the apostle’s mind. Much of their subject-matter, especially in the ethical section, is common to both. The glory of the Christ and the greatness of the Church are truths inseparable in the nature of things, wedded to each other. To the confession, “Thou art the Christ, the Son of the living God,” His response ever is, “_I will build my Church_.”[12] The same correspondence exists between these two epistles in the dialectic movement of the apostle’s thought. At the same time, there is a considerable difference between the two writings in point of style. M. Renan, who accepts Colossians from Paul’s hand, and who admits that “among all the epistles bearing the name of Paul the epistle to the Ephesians is perhaps that which has been most anciently cited as a composition of the apostle of the Gentiles,” yet speaks of this epistle as a “verbose amplification” of the other, “a commonplace letter, diffuse and pointless, loaded with useless words and repetitions, entangled and overgrown with irrelevancies, full of pleonasms and obscurities.”[13]