Whether it was before or after this time that Blastus left the communion of the Church we know not. Eusebius, however, relates(54), (at least so Massuet(55), with great probability, apprehends his meaning,) that he was deposed from the priesthood, and that he detached many from the Church to follow speculations of his own, at variance with the truth. Theodoret’s statement may therefore be substantially correct, although at a period subsequent to that at which Irenæus wrote the letter Περὶ Σχίσματος. The next letter Eusebius mentions is that to Florinus. This person was likewise a priest of the Church at Rome, and had been known to Irenæus in early life(56), when they were both pupils of Polycarp, and Florinus was high in the court of the reigning emperor. But he had forsaken civil life, and entered holy orders, from which he was now ejected, as being the head of a party holding novel and peculiar opinions(57). His peculiarity is distinctly specified, viz. that he taught that God was the author of evil. To avoid this conclusion, Marcion had taught two first principles—the one of good, the other of evil. It was probably in combating this error that Florinus had insisted on the unity of God, and of his providential government, which he had expressed by the term μοναρχία, and, from opposing one heresy with zeal too ardent for his judgment, had fallen into the opposite one. Irenæus, upon hearing of the fall of his former acquaintance, felt an earnest desire to restore him, and accordingly wrote to him, endeavouring, as it would appear, to explain the true notion of the μοναρχία of God, and especially to combat his peculiar error. A fragment of this letter is preserved by Eusebius(58), and printed(59) at the end of the best editions of the works of Irenæus. In it Irenæus represents to him how much at variance his opinions were with those of the Church; how impious in their tendency; how far beyond what any excommunicated heretic had ever taught; how much opposed to apostolical tradition: and he appeals to him from his own remembrance of the teaching of Polycarp (whom they had mutually reverenced), and from his published epistles, how shocked that blessed martyr would have been if he had heard such blasphemies.