In the seventh century Christianity had probably very little hold on a great mass of the people of Egypt. The theological catchwords that their leaders made use of, to stir up in them feelings of hatred and opposition to the Byzantine government, could have been intelligible to a very few, and the rapid spread of Islam in the early days of the Arab occupation was probably due less to definite efforts to attract than to the inability of such a Christianity to retain. The theological basis for the existence of the Jacobites as a separate sect, the tenets that they had so long and at so great a cost struggled to maintain, were embodied in doctrines of the most abstruse and metaphysical character, and many doubtless turned in utter perplexity and weariness from the interminable controversies that raged around them, to a faith that was summed up in the simple, intelligible truth of the Unity of God and the mission of His Prophet, Muḥammad. Even within the Coptic Church itself at a later period, we find evidence of a movement which, if not distinctly Muslim, was at least closely allied thereto, and in the absence of any separate ecclesiastical organisation in which it might find expression, probably contributed to the increase of the converts to Islam. In the beginning of the twelfth century, there was in the monastery of St. Anthony (near Iṭfīḥ on the Nile), a monk named Balūṭus, “learned in the doctrines of the Christian religion and the duties of the monastic life, and skilled in the rules of the canon-law. But Satan caught him in one of his nets; for he began to hold opinions at variance with those taught by the Three Hundred and Eighteen (of Nicæa); and he corrupted the minds of many of those who had no knowledge or instruction in the Orthodox faith. He announced with his impure mouth, in his wicked discourses, that Christ our Lord—to Whom be glory—was like one of the prophets. He associated with the lowest among the followers of his religion, clothed as he was in the monastic habit. When he was questioned as to his religion and his creed, he professed himself a believer in the Unity of God. His doctrines prevailed during a period which ended in the year 839 of the Righteous Martyrs (A.D. 1123); then he died, and his memory was cut off for ever.” [277]