See below Book VI. c. xiv. For the twofold error of Pelagianism cf. a striking article on “Theodore of Mopsuestia and Modern Thought” in the Church Quarterly Review, vol. i. See esp. p 135; where, speaking of Pelagianism, the writer says: “As the hypostatic union was denied lest it should derogate from the ethical completeness of Christ, so the efficacious working of grace must be explained away lest it should derogate from the moral dignity of Christians. The divine and human elements must be kept as jealously apart in the moral life of the members as in the person of the Head of the Church. In the ultimate analysis it must be proved that the initial movement in every good action came from the human will itself, though when this was allowed, the grace of God might receive, by an exact process of assessment, its due share of credit for the result.”